chore: reduce Renovate noise - monthly schedule, group major updates

.gitignore

@@ -67,6 +67,4 @@ CLAUDE.md
 .spec-workflow
 
 # edgeone
-.edgeone
-opencode.json
-ai-models.json
+.edgeone

README.md

@@ -207,7 +207,6 @@ See the [Next.js deployment documentation](https://nextjs.org/docs/app/building-
 -   OpenAI
 -   Anthropic
 -   Google AI
--   Google Vertex AI
 -   Azure OpenAI
 -   Ollama
 -   OpenRouter
@@ -222,10 +221,6 @@ All providers except AWS Bedrock and OpenRouter support custom endpoints.
 
 📖 **[Detailed Provider Configuration Guide](./docs/en/ai-providers.md)** - See setup instructions for each provider.
 
-### Server-Side Multi-Model Configuration
-
-Administrators can configure multiple server-side models that are available to all users without requiring personal API keys. Configure via `AI_MODELS_CONFIG` environment variable (JSON string) or `ai-models.json` file.
-
 **Model Requirements**: This task requires strong model capabilities for generating long-form text with strict formatting constraints (draw.io XML). Recommended models include Claude Sonnet 4.5, GPT-5.1, Gemini 3 Pro, and DeepSeek V3.2/R1.
 
 Note that the `claude` series has been trained on draw.io diagrams with cloud architecture logos like AWS, Azure, GCP. So if you want to create cloud architecture diagrams, this is the best choice.

app/[lang]/about/cn/page.tsx

@@ -292,7 +292,6 @@ export default function AboutCN() {
                         </li>
                         <li>Anthropic</li>
                         <li>Google AI</li>
-                        <li>Google Vertex AI</li>
                         <li>Azure OpenAI</li>
                         <li>Ollama</li>
                         <li>OpenRouter</li>

app/[lang]/about/ja/page.tsx

@@ -307,7 +307,6 @@ export default function AboutJA() {
                         </li>
                         <li>Anthropic</li>
                         <li>Google AI</li>
-                        <li>Google Vertex AI</li>
                         <li>Azure OpenAI</li>
                         <li>Ollama</li>
                         <li>OpenRouter</li>

app/[lang]/about/page.tsx

@@ -326,7 +326,6 @@ export default function About() {
                         </li>
                         <li>Anthropic</li>
                         <li>Google AI</li>
-                        <li>Google Vertex AI</li>
                         <li>Azure OpenAI</li>
                         <li>Ollama</li>
                         <li>OpenRouter</li>

app/[lang]/page.tsx

@@ -4,6 +4,7 @@ import { Suspense, useCallback, useEffect, useRef, useState } from "react"
 import { DrawIoEmbed } from "react-drawio"
 import type { ImperativePanelHandle } from "react-resizable-panels"
 import ChatPanel from "@/components/chat-panel"
+import { STORAGE_CLOSE_PROTECTION_KEY } from "@/components/settings-dialog"
 import {
     ResizableHandle,
     ResizablePanel,
@@ -28,6 +29,7 @@ export default function Home() {
     const [darkMode, setDarkMode] = useState(false)
     const [isLoaded, setIsLoaded] = useState(false)
     const [isDrawioReady, setIsDrawioReady] = useState(false)
+    const [closeProtection, setCloseProtection] = useState(false)
 
     const chatPanelRef = useRef<ImperativePanelHandle>(null)
     const isMobileRef = useRef(false)
@@ -64,6 +66,13 @@ export default function Home() {
             document.documentElement.classList.toggle("dark", prefersDark)
         }
 
+        const savedCloseProtection = localStorage.getItem(
+            STORAGE_CLOSE_PROTECTION_KEY,
+        )
+        if (savedCloseProtection === "true") {
+            setCloseProtection(true)
+        }
+
         setIsLoaded(true)
     }, [pathname, router])
 
@@ -137,6 +146,20 @@ export default function Home() {
         return () => window.removeEventListener("keydown", handleKeyDown)
     }, [])
 
+    // Show confirmation dialog when user tries to leave the page
+    useEffect(() => {
+        if (!closeProtection) return
+
+        const handleBeforeUnload = (event: BeforeUnloadEvent) => {
+            event.preventDefault()
+            return ""
+        }
+
+        window.addEventListener("beforeunload", handleBeforeUnload)
+        return () =>
+            window.removeEventListener("beforeunload", handleBeforeUnload)
+    }, [closeProtection])
+
     return (
         <div className="h-screen bg-background relative overflow-hidden">
             <ResizablePanelGroup
@@ -220,6 +243,7 @@ export default function Home() {
                                 darkMode={darkMode}
                                 onToggleDarkMode={handleDarkModeChange}
                                 isMobile={isMobile}
+                                onCloseProtectionChange={setCloseProtection}
                             />
                         </Suspense>
                     </div>

app/api/chat/route.ts

@@ -34,7 +34,6 @@ import {
     setTraceOutput,
     wrapWithObserve,
 } from "@/lib/langfuse"
-import { findServerModelById } from "@/lib/server-model-config"
 import { getSystemPrompt } from "@/lib/system-prompts"
 import { getUserIdFromRequest } from "@/lib/user-id"
 
@@ -169,7 +168,6 @@ async function handleChatRequest(req: Request): Promise<Response> {
     // Read client AI provider overrides from headers
     const provider = req.headers.get("x-ai-provider")
     let baseUrl = req.headers.get("x-ai-base-url")
-    const selectedModelId = req.headers.get("x-selected-model-id")
 
     // For EdgeOne provider, construct full URL from request origin
     // because createOpenAI needs absolute URL, not relative path
@@ -181,30 +179,8 @@ async function handleChatRequest(req: Request): Promise<Response> {
     // Get cookie header for EdgeOne authentication (eo_token, eo_time)
     const cookieHeader = req.headers.get("cookie")
 
-    // Check if this is a server model with custom env var names
-    let serverModelConfig: {
-        apiKeyEnv?: string
-        baseUrlEnv?: string
-        provider?: string
-    } = {}
-    if (selectedModelId?.startsWith("server:")) {
-        const serverModel = await findServerModelById(selectedModelId)
-        console.log(
-            `[Server Model Lookup] ID: ${selectedModelId}, Found: ${!!serverModel}, Provider: ${serverModel?.provider}`,
-        )
-        if (serverModel) {
-            serverModelConfig = {
-                apiKeyEnv: serverModel.apiKeyEnv,
-                baseUrlEnv: serverModel.baseUrlEnv,
-                // Use actual provider from config (client header may have incorrect value due to ID format change)
-                provider: serverModel.provider,
-            }
-        }
-    }
-
     const clientOverrides = {
-        // Server model provider takes precedence over client header
-        provider: serverModelConfig.provider || provider,
+        provider,
         baseUrl,
         apiKey: req.headers.get("x-ai-api-key"),
         modelId: req.headers.get("x-ai-model"),
@@ -213,10 +189,6 @@ async function handleChatRequest(req: Request): Promise<Response> {
         awsSecretAccessKey: req.headers.get("x-aws-secret-access-key"),
         awsRegion: req.headers.get("x-aws-region"),
         awsSessionToken: req.headers.get("x-aws-session-token"),
-        // Server model custom env var names
-        ...serverModelConfig,
-        // Vertex AI credentials (Express Mode)
-        vertexApiKey: req.headers.get("x-vertex-api-key"),
         // Pass cookies for EdgeOne Pages authentication
         ...(provider === "edgeone" &&
             cookieHeader && {
@@ -227,10 +199,6 @@ async function handleChatRequest(req: Request): Promise<Response> {
     // Read minimal style preference from header
     const minimalStyle = req.headers.get("x-minimal-style") === "true"
 
-    console.log(
-        `[Client Overrides] provider: ${clientOverrides.provider}, modelId: ${clientOverrides.modelId}`,
-    )
-
     // Get AI model with optional client overrides
     const { model, providerOptions, headers, modelId } =
         getAIModel(clientOverrides)
@@ -473,13 +441,6 @@ ${userInputText}
                         inputToRepair = inputToRepair.replace(/:=/g, ": ")
                         // Fix `= "` instead of `: "`
                         inputToRepair = inputToRepair.replace(/=\s*"/g, ': "')
-                        // Fix inconsistent quote escaping in XML attributes within JSON strings
-                        // Pattern: attribute="value\" where opening quote is unescaped but closing is escaped
-                        // Example: y="-20\" should be y=\"-20\"
-                        inputToRepair = inputToRepair.replace(
-                            /(\w+)="([^"]*?)\\"/g,
-                            '$1=\\"$2\\"',
-                        )
                     }
                     // Use jsonrepair to fix truncated JSON
                     const repairedInput = jsonrepair(inputToRepair)

app/api/parse-url/route.ts

@@ -1,11 +1,61 @@
 import { extract } from "@extractus/article-extractor"
 import { NextResponse } from "next/server"
 import TurndownService from "turndown"
-import { allowPrivateUrls, isPrivateUrl } from "@/lib/ssrf-protection"
 
 const MAX_CONTENT_LENGTH = 150000 // Match PDF limit
 const EXTRACT_TIMEOUT_MS = 15000
 
+// SSRF protection - block private/internal addresses
+function isPrivateUrl(urlString: string): boolean {
+    try {
+        const url = new URL(urlString)
+        const hostname = url.hostname.toLowerCase()
+
+        // Block localhost
+        if (
+            hostname === "localhost" ||
+            hostname === "127.0.0.1" ||
+            hostname === "::1"
+        ) {
+            return true
+        }
+
+        // Block AWS/cloud metadata endpoints
+        if (
+            hostname === "169.254.169.254" ||
+            hostname === "metadata.google.internal"
+        ) {
+            return true
+        }
+
+        // Check for private IPv4 ranges
+        const ipv4Match = hostname.match(
+            /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/,
+        )
+        if (ipv4Match) {
+            const [, a, b] = ipv4Match.map(Number)
+            if (a === 10) return true // 10.0.0.0/8
+            if (a === 172 && b >= 16 && b <= 31) return true // 172.16.0.0/12
+            if (a === 192 && b === 168) return true // 192.168.0.0/16
+            if (a === 169 && b === 254) return true // 169.254.0.0/16 (link-local)
+            if (a === 127) return true // 127.0.0.0/8 (loopback)
+        }
+
+        // Block common internal hostnames
+        if (
+            hostname.endsWith(".local") ||
+            hostname.endsWith(".internal") ||
+            hostname.endsWith(".localhost")
+        ) {
+            return true
+        }
+
+        return false
+    } catch {
+        return true // Invalid URL - block it
+    }
+}
+
 export async function POST(req: Request) {
     try {
         const { url } = await req.json()
@@ -28,7 +78,7 @@ export async function POST(req: Request) {
         }
 
         // SSRF protection
-        if (!allowPrivateUrls && isPrivateUrl(url)) {
+        if (isPrivateUrl(url)) {
             return NextResponse.json(
                 { error: "Cannot access private/internal URLs" },
                 { status: 400 },

app/api/server-models/route.ts

@@ -1,14 +0,0 @@
-import { NextResponse } from "next/server"
-import { loadFlattenedServerModels } from "@/lib/server-model-config"
-
-// Use dynamic rendering to read AI_MODEL/AI_PROVIDER env vars at runtime
-// This ensures Docker users can set these values when starting containers
-export const dynamic = "force-dynamic"
-
-export async function GET() {
-    const models = await loadFlattenedServerModels()
-    return NextResponse.json({
-        models,
-        hasConfig: models.length > 0,
-    })
-}

app/api/validate-model/route.ts

@@ -3,16 +3,74 @@ import { createAnthropic } from "@ai-sdk/anthropic"
 import { createDeepSeek, deepseek } from "@ai-sdk/deepseek"
 import { createGateway } from "@ai-sdk/gateway"
 import { createGoogleGenerativeAI } from "@ai-sdk/google"
-import { createVertex } from "@ai-sdk/google-vertex"
 import { createOpenAI } from "@ai-sdk/openai"
 import { createOpenRouter } from "@openrouter/ai-sdk-provider"
 import { generateText } from "ai"
 import { NextResponse } from "next/server"
 import { createOllama } from "ollama-ai-provider-v2"
-import { allowPrivateUrls, isPrivateUrl } from "@/lib/ssrf-protection"
 
 export const runtime = "nodejs"
 
+/**
+ * SECURITY: Check if URL points to private/internal network (SSRF protection)
+ * Blocks: localhost, private IPs, link-local, AWS metadata service
+ */
+function isPrivateUrl(urlString: string): boolean {
+    try {
+        const url = new URL(urlString)
+        const hostname = url.hostname.toLowerCase()
+
+        // Block localhost
+        if (
+            hostname === "localhost" ||
+            hostname === "127.0.0.1" ||
+            hostname === "::1"
+        ) {
+            return true
+        }
+
+        // Block AWS/cloud metadata endpoints
+        if (
+            hostname === "169.254.169.254" ||
+            hostname === "metadata.google.internal"
+        ) {
+            return true
+        }
+
+        // Check for private IPv4 ranges
+        const ipv4Match = hostname.match(
+            /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/,
+        )
+        if (ipv4Match) {
+            const [, a, b] = ipv4Match.map(Number)
+            // 10.0.0.0/8
+            if (a === 10) return true
+            // 172.16.0.0/12
+            if (a === 172 && b >= 16 && b <= 31) return true
+            // 192.168.0.0/16
+            if (a === 192 && b === 168) return true
+            // 169.254.0.0/16 (link-local)
+            if (a === 169 && b === 254) return true
+            // 127.0.0.0/8 (loopback)
+            if (a === 127) return true
+        }
+
+        // Block common internal hostnames
+        if (
+            hostname.endsWith(".local") ||
+            hostname.endsWith(".internal") ||
+            hostname.endsWith(".localhost")
+        ) {
+            return true
+        }
+
+        return false
+    } catch {
+        // Invalid URL - block it
+        return true
+    }
+}
+
 interface ValidateRequest {
     provider: string
     apiKey: string
@@ -22,8 +80,6 @@ interface ValidateRequest {
     awsAccessKeyId?: string
     awsSecretAccessKey?: string
     awsRegion?: string
-    // Vertex AI specific
-    vertexApiKey?: string // Express Mode API key
 }
 
 export async function POST(req: Request) {
@@ -37,8 +93,6 @@ export async function POST(req: Request) {
             awsAccessKeyId,
             awsSecretAccessKey,
             awsRegion,
-            // Note: Express Mode only needs vertexApiKey
-            vertexApiKey,
         } = body
 
         if (!provider || !modelId) {
@@ -49,7 +103,7 @@ export async function POST(req: Request) {
         }
 
         // SECURITY: Block SSRF attacks via custom baseUrl
-        if (baseUrl && !allowPrivateUrls && isPrivateUrl(baseUrl)) {
+        if (baseUrl && isPrivateUrl(baseUrl)) {
             return NextResponse.json(
                 { valid: false, error: "Invalid base URL" },
                 { status: 400 },
@@ -67,16 +121,6 @@ export async function POST(req: Request) {
                     { status: 400 },
                 )
             }
-        } else if (provider === "vertexai") {
-            if (!vertexApiKey) {
-                return NextResponse.json(
-                    {
-                        valid: false,
-                        error: "Vertex AI API key is required for Express Mode",
-                    },
-                    { status: 400 },
-                )
-            }
         } else if (provider !== "ollama" && provider !== "edgeone" && !apiKey) {
             return NextResponse.json(
                 { valid: false, error: "API key is required" },
@@ -114,15 +158,6 @@ export async function POST(req: Request) {
                 break
             }
 
-            case "vertexai": {
-                const vertex = createVertex({
-                    apiKey: vertexApiKey,
-                    ...(baseUrl && { baseURL: baseUrl }),
-                })
-                model = vertex(modelId)
-                break
-            }
-
             case "azure": {
                 const azure = createOpenAI({
                     apiKey,

components/ai-elements/model-selector.tsx

@@ -169,27 +169,3 @@ export const ModelSelectorName = ({
 }: ModelSelectorNameProps) => (
     <span className={cn("flex-1 truncate text-left", className)} {...props} />
 )
-
-export type ModelSelectorSectionHeaderProps = {
-    icon: ReactNode
-    label: string
-    className?: string
-}
-
-export const ModelSelectorSectionHeader = ({
-    icon,
-    label,
-    className,
-}: ModelSelectorSectionHeaderProps) => (
-    <div
-        className={cn(
-            "flex items-center gap-2 px-2 py-1.5 text-xs font-semibold text-muted-foreground bg-muted/40 rounded-sm mx-1 mt-1",
-            className,
-        )}
-    >
-        <span className="[&>svg]:size-3.5" aria-hidden="true">
-            {icon}
-        </span>
-        <span>{label}</span>
-    </div>
-)

components/chat-input.tsx

@@ -24,10 +24,8 @@ import { useDiagram } from "@/contexts/diagram-context"
 import { useDictionary } from "@/hooks/use-dictionary"
 import { formatMessage } from "@/lib/i18n/utils"
 import { isPdfFile, isTextFile } from "@/lib/pdf-utils"
-import { STORAGE_KEYS } from "@/lib/storage"
 import type { FlattenedModel } from "@/lib/types/model-config"
 import { extractUrlContent, type UrlData } from "@/lib/url-utils"
-import { isRealDiagram } from "@/lib/utils"
 import { FilePreviewList } from "./file-preview-list"
 
 const MAX_IMAGE_SIZE = 2 * 1024 * 1024 // 2MB
@@ -160,9 +158,6 @@ interface ChatInputProps {
     onModelSelect?: (modelId: string | undefined) => void
     showUnvalidatedModels?: boolean
     onConfigureModels?: () => void
-    // Focus control props
-    shouldFocus?: boolean
-    onFocused?: () => void
 }
 
 export function ChatInput({
@@ -182,12 +177,9 @@ export function ChatInput({
     onModelSelect = () => {},
     showUnvalidatedModels = false,
     onConfigureModels = () => {},
-    shouldFocus = false,
-    onFocused,
 }: ChatInputProps) {
     const dict = useDictionary()
     const {
-        chartXML,
         diagramHistory,
         saveDiagramToFile,
         showSaveDialog,
@@ -197,23 +189,9 @@ export function ChatInput({
     const textareaRef = useRef<HTMLTextAreaElement>(null)
     const fileInputRef = useRef<HTMLInputElement>(null)
     const [isDragging, setIsDragging] = useState(false)
-
-    // Focus the textarea when shouldFocus becomes true
-    // Use setTimeout to ensure focus happens after drawio iframe settles
-    useEffect(() => {
-        if (shouldFocus) {
-            const timer = setTimeout(() => {
-                textareaRef.current?.focus()
-                onFocused?.()
-            }, 150)
-            return () => clearTimeout(timer)
-        }
-    }, [shouldFocus, onFocused])
-
     const [showHistory, setShowHistory] = useState(false)
     const [showUrlDialog, setShowUrlDialog] = useState(false)
     const [isExtractingUrl, setIsExtractingUrl] = useState(false)
-    const [sendShortcut, setSendShortcut] = useState("ctrl-enter")
     // Allow retry when there's an error (even if status is still "streaming" or "submitted")
     const isDisabled =
         (status === "streaming" || status === "submitted") && !error
@@ -230,36 +208,13 @@ export function ChatInput({
         adjustTextareaHeight()
     }, [input, adjustTextareaHeight])
 
-    // Load send shortcut preference from localStorage and listen for changes
-    useEffect(() => {
-        const stored = localStorage.getItem(STORAGE_KEYS.sendShortcut)
-        if (stored) setSendShortcut(stored)
-
-        const handleChange = (e: CustomEvent<string>) =>
-            setSendShortcut(e.detail)
-        window.addEventListener(
-            "sendShortcutChange",
-            handleChange as EventListener,
-        )
-        return () =>
-            window.removeEventListener(
-                "sendShortcutChange",
-                handleChange as EventListener,
-            )
-    }, [])
-
     const handleChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
         onChange(e)
         adjustTextareaHeight()
     }
 
     const handleKeyDown = (e: React.KeyboardEvent) => {
-        const shouldSend =
-            sendShortcut === "enter"
-                ? e.key === "Enter" && !e.shiftKey && !e.ctrlKey && !e.metaKey
-                : (e.metaKey || e.ctrlKey) && e.key === "Enter"
-
-        if (shouldSend) {
+        if ((e.metaKey || e.ctrlKey) && e.key === "Enter") {
             e.preventDefault()
             const form = e.currentTarget.closest("form")
             if (form && input.trim() && !isDisabled) {
@@ -474,7 +429,7 @@ export function ChatInput({
                             variant="ghost"
                             size="sm"
                             onClick={() => setShowSaveDialog(true)}
-                            disabled={isDisabled || !isRealDiagram(chartXML)}
+                            disabled={isDisabled}
                             tooltipContent={dict.chat.saveDiagram}
                             className="h-8 w-8 p-0 text-muted-foreground hover:text-foreground"
                         >

components/chat-panel.tsx

@@ -70,6 +70,7 @@ interface ChatPanelProps {
     darkMode: boolean
     onToggleDarkMode: () => void
     isMobile?: boolean
+    onCloseProtectionChange?: (enabled: boolean) => void
 }
 
 // Constants for tool states
@@ -110,6 +111,7 @@ export default function ChatPanel({
     darkMode,
     onToggleDarkMode,
     isMobile = false,
+    onCloseProtectionChange,
 }: ChatPanelProps) {
     const {
         loadDiagram: onDisplayChart,
@@ -173,7 +175,6 @@ export default function ChatPanel({
     const [dailyTokenLimit, setDailyTokenLimit] = useState(0)
     const [tpmLimit, setTpmLimit] = useState(0)
     const [minimalStyle, setMinimalStyle] = useState(false)
-    const [shouldFocusInput, setShouldFocusInput] = useState(false)
 
     // Restore input from sessionStorage on mount (when ChatPanel remounts due to key change)
     useEffect(() => {
@@ -857,7 +858,6 @@ export default function ChatPanel({
 
         // Clear UI state (can't use syncUIWithSession here because we also need to clear files)
         setMessages([])
-        setInput("")
         clearDiagram()
         setDiagramHistory([])
         handleFileChange([]) // Use handleFileChange to also clear pdfData
@@ -872,9 +872,6 @@ export default function ChatPanel({
 
         // Clear URL param to show blank state
         router.replace(window.location.pathname, { scroll: false })
-
-        // After starting a fresh chat, move focus back to the chat input
-        setShouldFocusInput(true)
     }, [
         clearDiagram,
         handleFileChange,
@@ -968,14 +965,6 @@ export default function ChatPanel({
                         ...(config.awsSessionToken && {
                             "x-aws-session-token": config.awsSessionToken,
                         }),
-                        // Vertex AI credentials (Express Mode)
-                        ...(config.vertexApiKey && {
-                            "x-vertex-api-key": config.vertexApiKey,
-                        }),
-                    }),
-                    // Send selected model ID for server model lookup (apiKeyEnv/baseUrlEnv)
-                    ...(config.selectedModelId && {
-                        "x-selected-model-id": config.selectedModelId,
                     }),
                     ...(minimalStyle && {
                         "x-minimal-style": "true",
@@ -1301,14 +1290,13 @@ export default function ChatPanel({
                     onModelSelect={modelConfig.setSelectedModelId}
                     showUnvalidatedModels={modelConfig.showUnvalidatedModels}
                     onConfigureModels={() => setShowModelConfigDialog(true)}
-                    shouldFocus={shouldFocusInput}
-                    onFocused={() => setShouldFocusInput(false)}
                 />
             </footer>
 
             <SettingsDialog
                 open={showSettingsDialog}
                 onOpenChange={setShowSettingsDialog}
+                onCloseProtectionChange={onCloseProtectionChange}
                 drawioUi={drawioUi}
                 onToggleDrawioUi={onToggleDrawioUi}
                 darkMode={darkMode}

components/model-config-dialog.tsx

@@ -78,7 +78,6 @@ const PROVIDER_LOGO_MAP: Record<string, string> = {
     sglang: "openai", // SGLang is OpenAI-compatible
     gateway: "vercel",
     edgeone: "tencent-cloud",
-    vertexai: "google",
     doubao: "bytedance",
     modelscope: "modelscope",
 }
@@ -238,7 +237,6 @@ export function ModelConfigDialog({
             "awsAccessKeyId",
             "awsSecretAccessKey",
             "awsRegion",
-            "vertexApiKey",
         ]
         if (credentialFields.includes(field)) {
             setValidationStatus("idle")
@@ -282,7 +280,6 @@ export function ModelConfigDialog({
         // Check credentials based on provider type
         const isBedrock = selectedProvider.provider === "bedrock"
         const isEdgeOne = selectedProvider.provider === "edgeone"
-        const isVertexAI = selectedProvider.provider === "vertexai"
         if (isBedrock) {
             if (
                 !selectedProvider.awsAccessKeyId ||
@@ -291,11 +288,6 @@ export function ModelConfigDialog({
             ) {
                 return
             }
-        } else if (isVertexAI) {
-            // Vertex AI requires vertexApiKey for Express Mode
-            if (!selectedProvider.vertexApiKey) {
-                return
-            }
         } else if (!isEdgeOne && !selectedProvider.apiKey) {
             return
         }
@@ -336,8 +328,6 @@ export function ModelConfigDialog({
                         awsAccessKeyId: selectedProvider.awsAccessKeyId,
                         awsSecretAccessKey: selectedProvider.awsSecretAccessKey,
                         awsRegion: selectedProvider.awsRegion,
-                        // Vertex AI credentials (Express Mode)
-                        vertexApiKey: selectedProvider.vertexApiKey,
                     }),
                 })
                 const data = await response.json()
@@ -877,153 +867,7 @@ export function ModelConfigDialog({
                                                     </div>
                                                 </>
                                             ) : selectedProvider.provider ===
-                                              "vertexai" ? (
-                                                <>
-                                                    {/* Vertex AI API Key */}
-                                                    <div className="space-y-2">
-                                                        <Label
-                                                            htmlFor="vertex-api-key"
-                                                            className="text-xs font-medium flex items-center gap-1.5"
-                                                        >
-                                                            <Key className="h-3.5 w-3.5 text-muted-foreground" />
-                                                            API Key
-                                                        </Label>
-                                                        <div className="flex gap-2">
-                                                            <div className="relative flex-1">
-                                                                <Input
-                                                                    id="vertex-api-key"
-                                                                    type={
-                                                                        showApiKey
-                                                                            ? "text"
-                                                                            : "password"
-                                                                    }
-                                                                    value={
-                                                                        selectedProvider.vertexApiKey ||
-                                                                        ""
-                                                                    }
-                                                                    onChange={(
-                                                                        e,
-                                                                    ) =>
-                                                                        handleProviderUpdate(
-                                                                            "vertexApiKey",
-                                                                            e
-                                                                                .target
-                                                                                .value,
-                                                                        )
-                                                                    }
-                                                                    placeholder="Enter your Vertex AI API key"
-                                                                    className="h-9 pr-10 font-mono text-xs"
-                                                                />
-                                                                <button
-                                                                    type="button"
-                                                                    onClick={() =>
-                                                                        setShowApiKey(
-                                                                            !showApiKey,
-                                                                        )
-                                                                    }
-                                                                    aria-label={
-                                                                        showApiKey
-                                                                            ? "Hide API key"
-                                                                            : "Show API key"
-                                                                    }
-                                                                    className="absolute right-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 rounded"
-                                                                >
-                                                                    {showApiKey ? (
-                                                                        <EyeOff className="h-4 w-4" />
-                                                                    ) : (
-                                                                        <Eye className="h-4 w-4" />
-                                                                    )}
-                                                                </button>
-                                                            </div>
-                                                            <Button
-                                                                variant={
-                                                                    validationStatus ===
-                                                                    "success"
-                                                                        ? "outline"
-                                                                        : "default"
-                                                                }
-                                                                size="sm"
-                                                                onClick={
-                                                                    handleValidate
-                                                                }
-                                                                disabled={
-                                                                    !selectedProvider.vertexApiKey ||
-                                                                    validationStatus ===
-                                                                        "validating"
-                                                                }
-                                                                className={cn(
-                                                                    "h-9 px-4",
-                                                                    validationStatus ===
-                                                                        "success" &&
-                                                                        "text-success border-success/30 bg-success-muted hover:bg-success-muted",
-                                                                )}
-                                                            >
-                                                                {validationStatus ===
-                                                                "validating" ? (
-                                                                    <Loader2 className="h-4 w-4 animate-spin" />
-                                                                ) : validationStatus ===
-                                                                  "success" ? (
-                                                                    <>
-                                                                        <Check className="h-4 w-4 mr-1.5 animate-check-pop" />
-                                                                        {
-                                                                            dict
-                                                                                .modelConfig
-                                                                                .verified
-                                                                        }
-                                                                    </>
-                                                                ) : (
-                                                                    dict
-                                                                        .modelConfig
-                                                                        .test
-                                                                )}
-                                                            </Button>
-                                                        </div>
-                                                        {validationStatus ===
-                                                            "error" &&
-                                                            validationError && (
-                                                                <p className="text-xs text-destructive flex items-center gap-1">
-                                                                    <X className="h-3 w-3" />
-                                                                    {
-                                                                        validationError
-                                                                    }
-                                                                </p>
-                                                            )}
-                                                    </div>
-
-                                                    {/* Base URL (optional) */}
-                                                    <div className="space-y-2">
-                                                        <Label
-                                                            htmlFor="vertex-base-url"
-                                                            className="text-xs font-medium flex items-center gap-1.5"
-                                                        >
-                                                            <Link2 className="h-3.5 w-3.5 text-muted-foreground" />
-                                                            Base URL{" "}
-                                                            <span className="text-muted-foreground font-normal">
-                                                                (optional)
-                                                            </span>
-                                                        </Label>
-                                                        <Input
-                                                            id="vertex-base-url"
-                                                            value={
-                                                                selectedProvider.baseUrl ||
-                                                                ""
-                                                            }
-                                                            onChange={(e) =>
-                                                                handleProviderUpdate(
-                                                                    "baseUrl",
-                                                                    e.target
-                                                                        .value,
-                                                                )
-                                                            }
-                                                            placeholder="Custom endpoint URL"
-                                                            className="h-9 font-mono text-xs"
-                                                        />
-                                                    </div>
-                                                </>
-                                            ) : selectedProvider.provider ===
-                                                  "ollama" ||
-                                              selectedProvider.provider ===
-                                                  "edgeone" ? (
+                                              "edgeone" ? (
                                                 <div className="space-y-3">
                                                     <div className="flex items-center gap-2">
                                                         <Button

components/model-selector.tsx

@@ -5,10 +5,8 @@ import {
     Bot,
     Check,
     ChevronDown,
-    Monitor,
     Server,
     Settings2,
-    User,
 } from "lucide-react"
 import { useEffect, useMemo, useRef, useState } from "react"
 import {
@@ -21,7 +19,6 @@ import {
     ModelSelectorLogo,
     ModelSelectorName,
     ModelSelector as ModelSelectorRoot,
-    ModelSelectorSectionHeader,
     ModelSelectorSeparator,
     ModelSelectorTrigger,
 } from "@/components/ai-elements/model-selector"
@@ -52,7 +49,6 @@ const PROVIDER_LOGO_MAP: Record<string, string> = {
     sglang: "openai", // SGLang is OpenAI-compatible, use OpenAI logo
     gateway: "vercel",
     edgeone: "tencent-cloud",
-    vertexai: "google",
     doubao: "bytedance",
     modelscope: "modelscope",
 }
@@ -66,11 +62,7 @@ function groupModelsByProvider(
         { provider: string; models: FlattenedModel[] }
     >()
     for (const model of models) {
-        // For server models, strip "Server · " prefix for cleaner grouping
-        const key =
-            model.source === "server"
-                ? model.providerLabel.replace(/^Server · /, "")
-                : model.providerLabel
+        const key = model.providerLabel
         const existing = groups.get(key)
         if (existing) {
             existing.models.push(model)
@@ -98,26 +90,10 @@ export function ModelSelector({
         }
         return models.filter((m) => m.validated === true)
     }, [models, showUnvalidatedModels])
-
-    // Separate server and user models
-    const serverModels = useMemo(
-        () => displayModels.filter((m) => m.source === "server"),
+    const groupedModels = useMemo(
+        () => groupModelsByProvider(displayModels),
         [displayModels],
     )
-    const userModels = useMemo(
-        () => displayModels.filter((m) => m.source !== "server"),
-        [displayModels],
-    )
-
-    // Group each category separately
-    const groupedServerModels = useMemo(
-        () => groupModelsByProvider(serverModels),
-        [serverModels],
-    )
-    const groupedUserModels = useMemo(
-        () => groupModelsByProvider(userModels),
-        [userModels],
-    )
 
     // Find selected model for display
     const selectedModel = useMemo(
@@ -184,7 +160,7 @@ export function ModelSelector({
                         size="sm"
                         disabled={disabled}
                         className={cn(
-                            "hover:bg-accent gap-1.5 h-8 px-2 transition-[padding,background-color] duration-150 ease-in-out",
+                            "hover:bg-accent gap-1.5 h-8 px-2 transition-all duration-150 ease-in-out",
                             !showLabel && "px-1.5 justify-center",
                         )}
                         // accessibility: expose label to screen readers
@@ -221,169 +197,83 @@ export function ModelSelector({
                                 : dict.modelConfig.noModelsFound}
                         </ModelSelectorEmpty>
 
-                        {/* Server Default Option - only show when no server models are configured */}
-                        {serverModels.length === 0 && (
-                            <ModelSelectorGroup
-                                heading={dict.modelConfig.default}
+                        {/* Server Default Option */}
+                        <ModelSelectorGroup heading={dict.modelConfig.default}>
+                            <ModelSelectorItem
+                                value="__server_default__"
+                                onSelect={handleSelect}
+                                className={cn(
+                                    "cursor-pointer",
+                                    !selectedModelId && "bg-accent",
+                                )}
                             >
-                                <ModelSelectorItem
-                                    value="__server_default__"
-                                    onSelect={handleSelect}
+                                <Check
                                     className={cn(
-                                        "cursor-pointer",
-                                        !selectedModelId && "bg-accent",
+                                        "mr-2 h-4 w-4",
+                                        !selectedModelId
+                                            ? "opacity-100"
+                                            : "opacity-0",
                                     )}
+                                />
+                                <Server className="mr-2 h-4 w-4 text-muted-foreground" />
+                                <ModelSelectorName>
+                                    {dict.modelConfig.serverDefault}
+                                </ModelSelectorName>
+                            </ModelSelectorItem>
+                        </ModelSelectorGroup>
+
+                        {/* Configured Models by Provider */}
+                        {Array.from(groupedModels.entries()).map(
+                            ([
+                                providerLabel,
+                                { provider, models: providerModels },
+                            ]) => (
+                                <ModelSelectorGroup
+                                    key={providerLabel}
+                                    heading={providerLabel}
                                 >
-                                    <Check
-                                        className={cn(
-                                            "mr-2 h-4 w-4",
-                                            !selectedModelId
-                                                ? "opacity-100"
-                                                : "opacity-0",
-                                        )}
-                                    />
-                                    <Server className="mr-2 h-4 w-4 text-muted-foreground" />
-                                    <ModelSelectorName>
-                                        {dict.modelConfig.serverDefault}
-                                    </ModelSelectorName>
-                                </ModelSelectorItem>
-                            </ModelSelectorGroup>
-                        )}
-
-                        {/* Server Models Section */}
-                        {serverModels.length > 0 && (
-                            <>
-                                <ModelSelectorSectionHeader
-                                    icon={<Monitor />}
-                                    label={dict.modelConfig.serverModels}
-                                />
-                                {Array.from(groupedServerModels.entries()).map(
-                                    ([
-                                        providerLabel,
-                                        { provider, models: providerModels },
-                                    ]) => (
-                                        <ModelSelectorGroup
-                                            key={`server-${providerLabel}`}
-                                            heading={providerLabel}
-                                            className="[&>[cmdk-group-heading]]:pl-4"
+                                    {providerModels.map((model) => (
+                                        <ModelSelectorItem
+                                            key={model.id}
+                                            value={model.modelId}
+                                            onSelect={() =>
+                                                handleSelect(model.id)
+                                            }
+                                            className="cursor-pointer"
                                         >
-                                            {providerModels.map((model) => (
-                                                <ModelSelectorItem
-                                                    key={model.id}
-                                                    value={model.modelId}
-                                                    onSelect={() =>
-                                                        handleSelect(model.id)
+                                            <Check
+                                                className={cn(
+                                                    "mr-2 h-4 w-4",
+                                                    selectedModelId === model.id
+                                                        ? "opacity-100"
+                                                        : "opacity-0",
+                                                )}
+                                            />
+                                            <ModelSelectorLogo
+                                                provider={
+                                                    PROVIDER_LOGO_MAP[
+                                                        provider
+                                                    ] || provider
+                                                }
+                                                className="mr-2"
+                                            />
+                                            <ModelSelectorName>
+                                                {model.modelId}
+                                            </ModelSelectorName>
+                                            {model.validated !== true && (
+                                                <span
+                                                    title={
+                                                        dict.modelConfig
+                                                            .unvalidatedModelWarning
                                                     }
-                                                    className="cursor-pointer"
                                                 >
-                                                    <Check
-                                                        className={cn(
-                                                            "mr-2 h-4 w-4",
-                                                            selectedModelId ===
-                                                                model.id
-                                                                ? "opacity-100"
-                                                                : "opacity-0",
-                                                        )}
-                                                    />
-                                                    <ModelSelectorLogo
-                                                        provider={
-                                                            PROVIDER_LOGO_MAP[
-                                                                provider
-                                                            ] || provider
-                                                        }
-                                                        className="mr-2"
-                                                    />
-                                                    <ModelSelectorName>
-                                                        {model.modelId}
-                                                    </ModelSelectorName>
-                                                    {model.isDefault && (
-                                                        <span
-                                                            title={
-                                                                dict.modelConfig
-                                                                    .serverDefaultModel
-                                                            }
-                                                            className="ml-auto text-xs text-muted-foreground"
-                                                        >
-                                                            {
-                                                                dict.modelConfig
-                                                                    .default
-                                                            }
-                                                        </span>
-                                                    )}
-                                                </ModelSelectorItem>
-                                            ))}
-                                        </ModelSelectorGroup>
-                                    ),
-                                )}
-                            </>
-                        )}
-
-                        {/* User Models Section */}
-                        {userModels.length > 0 && (
-                            <>
-                                {serverModels.length > 0 && (
-                                    <ModelSelectorSeparator />
-                                )}
-                                <ModelSelectorSectionHeader
-                                    icon={<User />}
-                                    label={dict.modelConfig.userModels}
-                                />
-                                {Array.from(groupedUserModels.entries()).map(
-                                    ([
-                                        providerLabel,
-                                        { provider, models: providerModels },
-                                    ]) => (
-                                        <ModelSelectorGroup
-                                            key={`user-${providerLabel}`}
-                                            heading={providerLabel}
-                                            className="[&>[cmdk-group-heading]]:pl-4"
-                                        >
-                                            {providerModels.map((model) => (
-                                                <ModelSelectorItem
-                                                    key={model.id}
-                                                    value={model.modelId}
-                                                    onSelect={() =>
-                                                        handleSelect(model.id)
-                                                    }
-                                                    className="cursor-pointer"
-                                                >
-                                                    <Check
-                                                        className={cn(
-                                                            "mr-2 h-4 w-4",
-                                                            selectedModelId ===
-                                                                model.id
-                                                                ? "opacity-100"
-                                                                : "opacity-0",
-                                                        )}
-                                                    />
-                                                    <ModelSelectorLogo
-                                                        provider={
-                                                            PROVIDER_LOGO_MAP[
-                                                                provider
-                                                            ] || provider
-                                                        }
-                                                        className="mr-2"
-                                                    />
-                                                    <ModelSelectorName>
-                                                        {model.modelId}
-                                                    </ModelSelectorName>
-                                                    {model.validated !==
-                                                        true && (
-                                                        <span
-                                                            title={
-                                                                dict.modelConfig
-                                                                    .unvalidatedModelWarning
-                                                            }
-                                                        >
-                                                            <AlertTriangle className="ml-auto h-3 w-3 text-warning" />
-                                                        </span>
-                                                    )}
-                                                </ModelSelectorItem>
-                                            ))}
-                                        </ModelSelectorGroup>
-                                    ),
-                                )}
-                            </>
+                                                    <AlertTriangle className="ml-auto h-3 w-3 text-warning" />
+                                                </span>
+                                            )}
+                                        </ModelSelectorItem>
+                                    ))}
+                                </ModelSelectorGroup>
+                            ),
                         )}
 
                         {/* Configure Option */}
@@ -392,7 +282,7 @@ export function ModelSelector({
                             <ModelSelectorItem
                                 value="__configure__"
                                 onSelect={handleSelect}
-                                className="cursor-pointer text-muted-foreground hover:text-foreground"
+                                className="cursor-pointer"
                             >
                                 <Settings2 className="mr-2 h-4 w-4" />
                                 <ModelSelectorName>

components/settings-dialog.tsx

@@ -25,7 +25,6 @@ import { Switch } from "@/components/ui/switch"
 import { useDictionary } from "@/hooks/use-dictionary"
 import { getApiEndpoint } from "@/lib/base-path"
 import { i18n, type Locale } from "@/lib/i18n/config"
-import { STORAGE_KEYS } from "@/lib/storage"
 
 // Reusable setting item component for consistent layout
 function SettingItem({
@@ -61,6 +60,7 @@ const LANGUAGE_LABELS: Record<Locale, string> = {
 interface SettingsDialogProps {
     open: boolean
     onOpenChange: (open: boolean) => void
+    onCloseProtectionChange?: (enabled: boolean) => void
     drawioUi: "min" | "sketch"
     onToggleDrawioUi: () => void
     darkMode: boolean
@@ -70,6 +70,7 @@ interface SettingsDialogProps {
 }
 
 export const STORAGE_ACCESS_CODE_KEY = "next-ai-draw-io-access-code"
+export const STORAGE_CLOSE_PROTECTION_KEY = "next-ai-draw-io-close-protection"
 const STORAGE_ACCESS_CODE_REQUIRED_KEY = "next-ai-draw-io-access-code-required"
 
 function getStoredAccessCodeRequired(): boolean | null {
@@ -82,6 +83,7 @@ function getStoredAccessCodeRequired(): boolean | null {
 function SettingsContent({
     open,
     onOpenChange,
+    onCloseProtectionChange,
     drawioUi,
     onToggleDrawioUi,
     darkMode,
@@ -94,13 +96,13 @@ function SettingsContent({
     const pathname = usePathname() || "/"
     const search = useSearchParams()
     const [accessCode, setAccessCode] = useState("")
+    const [closeProtection, setCloseProtection] = useState(true)
     const [isVerifying, setIsVerifying] = useState(false)
     const [error, setError] = useState("")
     const [accessCodeRequired, setAccessCodeRequired] = useState(
         () => getStoredAccessCodeRequired() ?? false,
     )
     const [currentLang, setCurrentLang] = useState("en")
-    const [sendShortcut, setSendShortcut] = useState("ctrl-enter")
 
     // Proxy settings state (Electron only)
     const [httpProxy, setHttpProxy] = useState("")
@@ -147,10 +149,11 @@ function SettingsContent({
                 localStorage.getItem(STORAGE_ACCESS_CODE_KEY) || ""
             setAccessCode(storedCode)
 
-            const storedSendShortcut = localStorage.getItem(
-                STORAGE_KEYS.sendShortcut,
+            const storedCloseProtection = localStorage.getItem(
+                STORAGE_CLOSE_PROTECTION_KEY,
             )
-            setSendShortcut(storedSendShortcut || "ctrl-enter")
+            // Default to true if not set
+            setCloseProtection(storedCloseProtection !== "false")
 
             setError("")
 
@@ -168,13 +171,6 @@ function SettingsContent({
         // Save locale to localStorage for persistence across restarts
         localStorage.setItem("next-ai-draw-io-locale", lang)
 
-        // Notify Electron main process to update its menu language
-        if (window.electronAPI?.setUserLocale) {
-            window.electronAPI.setUserLocale(lang).catch((error) => {
-                console.error("Failed to sync locale with Electron:", error)
-            })
-        }
-
         const parts = pathname.split("/")
         if (parts.length > 1 && i18n.locales.includes(parts[1] as Locale)) {
             parts[1] = lang
@@ -391,6 +387,25 @@ function SettingsContent({
                         </Button>
                     </SettingItem>
 
+                    {/* Close Protection */}
+                    <SettingItem
+                        label={dict.settings.closeProtection}
+                        description={dict.settings.closeProtectionDescription}
+                    >
+                        <Switch
+                            id="close-protection"
+                            checked={closeProtection}
+                            onCheckedChange={(checked) => {
+                                setCloseProtection(checked)
+                                localStorage.setItem(
+                                    STORAGE_CLOSE_PROTECTION_KEY,
+                                    checked.toString(),
+                                )
+                                onCloseProtectionChange?.(checked)
+                            }}
+                        />
+                    </SettingItem>
+
                     {/* Diagram Style */}
                     <SettingItem
                         label={dict.settings.diagramStyle}
@@ -410,43 +425,6 @@ function SettingsContent({
                         </div>
                     </SettingItem>
 
-                    {/* Send Shortcut */}
-                    <SettingItem
-                        label={dict.settings.sendShortcut}
-                        description={dict.settings.sendShortcutDescription}
-                    >
-                        <Select
-                            value={sendShortcut}
-                            onValueChange={(value) => {
-                                setSendShortcut(value)
-                                localStorage.setItem(
-                                    STORAGE_KEYS.sendShortcut,
-                                    value,
-                                )
-                                window.dispatchEvent(
-                                    new CustomEvent("sendShortcutChange", {
-                                        detail: value,
-                                    }),
-                                )
-                            }}
-                        >
-                            <SelectTrigger
-                                id="send-shortcut-select"
-                                className="w-[170px] h-9 rounded-xl"
-                            >
-                                <SelectValue />
-                            </SelectTrigger>
-                            <SelectContent>
-                                <SelectItem value="enter">
-                                    {dict.settings.enterToSend}
-                                </SelectItem>
-                                <SelectItem value="ctrl-enter">
-                                    {dict.settings.ctrlEnterToSend}
-                                </SelectItem>
-                            </SelectContent>
-                        </Select>
-                    </SettingItem>
-
                     {/* Proxy Settings - Electron only */}
                     {typeof window !== "undefined" &&
                         window.electronAPI?.isElectron && (

docs/cn/README_CN.md

@@ -200,7 +200,6 @@ npm run dev
 -   OpenAI
 -   Anthropic
 -   Google AI
--   Google Vertex AI
 -   Azure OpenAI
 -   Ollama
 -   OpenRouter
@@ -214,10 +213,6 @@ npm run dev
 
 📖 **[详细的提供商配置指南](./ai-providers.md)** - 查看各提供商的设置说明。
 
-### 服务端多模型配置
-
-管理员可以配置多个服务端模型，让所有用户无需提供个人 API Key 即可使用。通过 `AI_MODELS_CONFIG` 环境变量（JSON 字符串）或 `ai-models.json` 文件配置。
-
 **模型要求**：此任务需要强大的模型能力，因为它涉及生成具有严格格式约束的长文本（draw.io XML）。推荐使用 Claude Sonnet 4.5、GPT-5.1、Gemini 3 Pro 和 DeepSeek V3.2/R1。
 
 注意：`claude` 系列已在带有 AWS、Azure、GCP 等云架构 Logo 的 draw.io 图表上进行训练，因此如果您想创建云架构图，这是最佳选择。

docs/cn/ai-providers.md

@@ -217,63 +217,6 @@ AI_MODEL=openai/gpt-4o
 AI_PROVIDER=google  # 或：openai, anthropic, deepseek, siliconflow, doubao, azure, bedrock, openrouter, ollama, gateway, sglang
 ```
 
-## 服务端多模型配置
-
-管理员可以配置多个服务端模型，让所有用户无需提供个人 API Key 即可使用。
-
-### 配置方式
-
-**方式一：环境变量**（推荐用于云部署）
-
-设置 `AI_MODELS_CONFIG` 为 JSON 字符串：
-
-```bash
-AI_MODELS_CONFIG='{"providers":[{"name":"OpenAI","provider":"openai","models":["gpt-4o"],"default":true}]}'
-```
-
-**方式二：配置文件**
-
-在项目根目录创建 `ai-models.json` 文件（或通过 `AI_MODELS_CONFIG_PATH` 指定路径）。
-
-### 配置示例
-
-```json
-{
-  "providers": [
-    {
-      "name": "OpenAI Production",
-      "provider": "openai",
-      "models": ["gpt-4o", "gpt-4o-mini"],
-      "default": true
-    },
-    {
-      "name": "Custom DeepSeek",
-      "provider": "deepseek",
-      "models": ["deepseek-chat"],
-      "apiKeyEnv": "MY_DEEPSEEK_KEY",
-      "baseUrlEnv": "MY_DEEPSEEK_URL"
-    }
-  ]
-}
-```
-
-### 字段说明
-
-| 字段 | 必填 | 说明 |
-|------|------|------|
-| `name` | 是 | 显示名称（支持同一提供商多个配置） |
-| `provider` | 是 | 提供商类型（`openai`, `anthropic`, `google`, `bedrock` 等） |
-| `models` | 是 | 模型 ID 列表 |
-| `default` | 否 | 设为 `true` 表示默认选中该提供商的第一个模型 |
-| `apiKeyEnv` | 否 | 自定义 API Key 环境变量名（默认使用提供商标准变量如 `OPENAI_API_KEY`） |
-| `baseUrlEnv` | 否 | 自定义 Base URL 环境变量名 |
-
-### 说明
-
-- API Key 和凭证通过环境变量提供。默认使用标准变量名（如 `OPENAI_API_KEY`），也可通过 `apiKeyEnv` 指定自定义变量名。
-- `name` 字段允许同一提供商多个配置（例如 "OpenAI Production" 和 "OpenAI Staging" 都使用 `provider: "openai"` 但 `apiKeyEnv` 不同）。
-- 如果配置不存在，应用会回退到 `AI_PROVIDER`/`AI_MODEL` 环境变量配置。
-
 ## 模型能力要求
 
 此任务对模型能力要求极高，因为它涉及生成具有严格格式约束（draw.io XML）的长文本。

docs/en/ai-providers.md

@@ -33,21 +33,6 @@ Optional custom endpoint:
 GOOGLE_BASE_URL=https://your-custom-endpoint
 ```
 
-### Google Vertex AI (Enterprise GCP)
-
-Google Vertex AI offers enterprise-grade features and data residency. **Express Mode** allows for simple API key authentication, making it compatible with edge runtimes like Vercel and Cloudflare.
-
-```bash
-GOOGLE_VERTEX_API_KEY=your_api_key
-AI_MODEL=gemini-2.0-flash
-```
-
-Optional custom endpoint:
-
-```bash
-GOOGLE_VERTEX_BASE_URL=https://your-custom-endpoint
-```
-
 ### OpenAI
 
 ```bash
@@ -232,63 +217,6 @@ If you configure **multiple** API keys, you must explicitly set `AI_PROVIDER`:
 AI_PROVIDER=google  # or: openai, anthropic, deepseek, siliconflow, doubao, azure, bedrock, openrouter, ollama, gateway, sglang, modelscope
 ```
 
-## Server-Side Multi-Model Configuration
-
-Administrators can configure multiple server-side models that are available to all users without requiring personal API keys.
-
-### Configuration Methods
-
-**Option 1: Environment Variable** (recommended for cloud deployments)
-
-Set `AI_MODELS_CONFIG` as a JSON string:
-
-```bash
-AI_MODELS_CONFIG='{"providers":[{"name":"OpenAI","provider":"openai","models":["gpt-4o"],"default":true}]}'
-```
-
-**Option 2: Config File**
-
-Create an `ai-models.json` file in the project root (or set `AI_MODELS_CONFIG_PATH` to a custom location).
-
-### Example Configuration
-
-```json
-{
-  "providers": [
-    {
-      "name": "OpenAI Production",
-      "provider": "openai",
-      "models": ["gpt-4o", "gpt-4o-mini"],
-      "default": true
-    },
-    {
-      "name": "Custom DeepSeek",
-      "provider": "deepseek",
-      "models": ["deepseek-chat"],
-      "apiKeyEnv": "MY_DEEPSEEK_KEY",
-      "baseUrlEnv": "MY_DEEPSEEK_URL"
-    }
-  ]
-}
-```
-
-### Field Reference
-
-| Field | Required | Description |
-|-------|----------|-------------|
-| `name` | Yes | Display name (supports multiple configs for same provider) |
-| `provider` | Yes | Provider type (`openai`, `anthropic`, `google`, `bedrock`, etc.) |
-| `models` | Yes | List of model IDs |
-| `default` | No | Set to `true` to auto-select this provider's first model as default |
-| `apiKeyEnv` | No | Custom API key env var name (defaults to provider's standard var like `OPENAI_API_KEY`) |
-| `baseUrlEnv` | No | Custom base URL env var name |
-
-### Notes
-
-- API keys and credentials are provided via environment variables. By default, standard var names are used (e.g., `OPENAI_API_KEY`), but you can specify custom var names with `apiKeyEnv`.
-- The `name` field allows multiple configurations for the same provider (e.g., "OpenAI Production" and "OpenAI Staging" both using `provider: "openai"` but with different `apiKeyEnv` values).
-- If config is not present, the app falls back to `AI_PROVIDER`/`AI_MODEL` environment variable configuration.
-
 ## Model Capability Requirements
 
 This task requires exceptionally strong model capabilities, as it involves generating long-form text with strict formatting constraints (draw.io XML).

docs/en/docker.md

@@ -22,27 +22,6 @@ cp env.example .env
 docker run -d -p 3000:3000 --env-file .env ghcr.io/dayuanjiang/next-ai-draw-io:latest
 ```
 
-### Using server-side model configuration
-
-You can mount an `ai-models.json` file into the container to provide multiple server-side models without exposing user API keys:
-
-```bash
-docker run -d -p 3000:3000 \
-  -e OPENAI_API_KEY=your_api_key \
-  -v $(pwd)/ai-models.json:/app/ai-models.json:ro \
-  ghcr.io/dayuanjiang/next-ai-draw-io:latest
-```
-
-If you prefer to keep the config in a different path inside the container, set `AI_MODELS_CONFIG_PATH`:
-
-```bash
-docker run -d -p 3000:3000 \
-  -e OPENAI_API_KEY=your_api_key \
-  -e AI_MODELS_CONFIG_PATH=/config/ai-models.json \
-  -v $(pwd)/ai-models.json:/config/ai-models.json:ro \
-  ghcr.io/dayuanjiang/next-ai-draw-io:latest
-```
-
 Open [http://localhost:3000](http://localhost:3000) in your browser.
 
 Replace the environment variables with your preferred AI provider configuration. See [AI Providers](./ai-providers.md) for available options.

docs/ja/README_JA.md

@@ -201,7 +201,6 @@ Next.jsアプリをデプロイする最も簡単な方法は、Next.jsの作成
 -   OpenAI
 -   Anthropic
 -   Google AI
--   Google Vertex AI
 -   Azure OpenAI
 -   Ollama
 -   OpenRouter
@@ -215,10 +214,6 @@ AWS BedrockとOpenRouter以外のすべてのプロバイダーはカスタム
 
 📖 **[詳細なプロバイダー設定ガイド](./ai-providers.md)** - 各プロバイダーの設定手順をご覧ください。
 
-### サーバーサイドマルチモデル設定
-
-管理者は、ユーザーが個人のAPIキーを提供することなく利用できる複数のサーバーサイドモデルを設定できます。`AI_MODELS_CONFIG` 環境変数（JSON文字列）または `ai-models.json` ファイルで設定します。
-
 **モデル要件**：このタスクは厳密なフォーマット制約（draw.io XML）を持つ長文テキスト生成を伴うため、強力なモデル機能が必要です。Claude Sonnet 4.5、GPT-5.1、Gemini 3 Pro、DeepSeek V3.2/R1を推奨します。
 
 注：`claude`シリーズはAWS、Azure、GCPなどのクラウドアーキテクチャロゴ付きのdraw.ioダイアグラムで学習されているため、クラウドアーキテクチャダイアグラムを作成したい場合は最適な選択です。

docs/ja/ai-providers.md

@@ -217,63 +217,6 @@ AI_MODEL=openai/gpt-4o
 AI_PROVIDER=google  # または: openai, anthropic, deepseek, siliconflow, doubao, azure, bedrock, openrouter, ollama, gateway, sglang
 ```
 
-## サーバーサイドマルチモデル設定
-
-管理者は、ユーザーが個人のAPIキーを提供することなく利用できる複数のサーバーサイドモデルを設定できます。
-
-### 設定方法
-
-**方法1：環境変数**（クラウドデプロイ推奨）
-
-`AI_MODELS_CONFIG` をJSON文字列として設定：
-
-```bash
-AI_MODELS_CONFIG='{"providers":[{"name":"OpenAI","provider":"openai","models":["gpt-4o"],"default":true}]}'
-```
-
-**方法2：設定ファイル**
-
-プロジェクトルートに `ai-models.json` ファイルを作成します（または `AI_MODELS_CONFIG_PATH` でパスを指定）。
-
-### 設定例
-
-```json
-{
-  "providers": [
-    {
-      "name": "OpenAI Production",
-      "provider": "openai",
-      "models": ["gpt-4o", "gpt-4o-mini"],
-      "default": true
-    },
-    {
-      "name": "Custom DeepSeek",
-      "provider": "deepseek",
-      "models": ["deepseek-chat"],
-      "apiKeyEnv": "MY_DEEPSEEK_KEY",
-      "baseUrlEnv": "MY_DEEPSEEK_URL"
-    }
-  ]
-}
-```
-
-### フィールド説明
-
-| フィールド | 必須 | 説明 |
-|------------|------|------|
-| `name` | はい | 表示名（同一プロバイダーの複数設定をサポート） |
-| `provider` | はい | プロバイダータイプ（`openai`, `anthropic`, `google`, `bedrock` など） |
-| `models` | はい | モデルIDのリスト |
-| `default` | いいえ | `true` に設定すると、そのプロバイダーの最初のモデルがデフォルトで選択されます |
-| `apiKeyEnv` | いいえ | カスタムAPIキー環境変数名（デフォルトは `OPENAI_API_KEY` などの標準変数） |
-| `baseUrlEnv` | いいえ | カスタムBase URL環境変数名 |
-
-### 備考
-
-- APIキーと認証情報は環境変数で提供します。デフォルトは標準変数名（例：`OPENAI_API_KEY`）を使用しますが、`apiKeyEnv` でカスタム変数名を指定できます。
-- `name` フィールドにより同一プロバイダーの複数設定が可能です（例：「OpenAI Production」と「OpenAI Staging」が両方とも `provider: "openai"` を使用しつつ、異なる `apiKeyEnv` を持つ）。
-- 設定が存在しない場合、アプリは `AI_PROVIDER`/`AI_MODEL` 環境変数設定にフォールバックします。
-
 ## モデル性能要件
 
 このタスクは、厳密なフォーマット制約（draw.io XML）を伴う長文テキストの生成を含むため、非常に強力なモデル性能が必要です。

electron/electron.d.ts

@@ -38,12 +38,6 @@ interface SetProxyResult {
     devMode?: boolean
 }
 
-/** Result of setting user locale */
-interface SetUserLocaleResult {
-    success: boolean
-    error?: string
-}
-
 declare global {
     interface Window {
         /** Main window Electron API */
@@ -68,10 +62,6 @@ declare global {
             getProxy: () => Promise<ProxyConfig>
             /** Set proxy configuration (saves and restarts server) */
             setProxy: (config: ProxyConfig) => Promise<SetProxyResult>
-            /** Get user's preferred locale */
-            getUserLocale: () => Promise<"en" | "zh" | "ja" | undefined>
-            /** Set user's preferred locale */
-            setUserLocale: (locale: string) => Promise<SetUserLocaleResult>
         }
 
         /** Settings window Electron API */
@@ -98,10 +88,4 @@ declare global {
     }
 }
 
-export type {
-    ConfigPreset,
-    ApplyPresetResult,
-    ProxyConfig,
-    SetProxyResult,
-    SetUserLocaleResult,
-}
+export { ConfigPreset, ApplyPresetResult, ProxyConfig, SetProxyResult }

electron/main/app-menu.ts

@@ -12,12 +12,11 @@ import {
     getCurrentPresetId,
     setCurrentPreset,
 } from "./config-manager"
-import { getMenuTranslations, getPreferredLocale } from "./menu-i18n"
 import { restartNextServer } from "./next-server"
 import { showSettingsWindow } from "./settings-window"
 
 /**
- * Build and set the application menu with i18n support
+ * Build and set the application menu
  */
 export function buildAppMenu(): void {
     const template = getMenuTemplate()
@@ -26,22 +25,18 @@ export function buildAppMenu(): void {
 }
 
 /**
- * Rebuild the menu (call this when presets change or language changes)
+ * Rebuild the menu (call this when presets change)
  */
 export function rebuildAppMenu(): void {
     buildAppMenu()
 }
 
 /**
- * Get the menu template with translations
+ * Get the menu template
  */
 function getMenuTemplate(): MenuItemConstructorOptions[] {
     const isMac = process.platform === "darwin"
 
-    // Get translations for preferred locale (saved preference or system default)
-    const locale = getPreferredLocale(app.getLocale())
-    const t = getMenuTranslations(locale)
-
     const template: MenuItemConstructorOptions[] = []
 
     // macOS app menu
@@ -49,10 +44,10 @@ function getMenuTemplate(): MenuItemConstructorOptions[] {
         template.push({
             label: app.name,
             submenu: [
-                { role: "about" }, // System-translated
+                { role: "about" },
                 { type: "separator" },
                 {
-                    label: t.settings,
+                    label: "Settings...",
                     accelerator: "CmdOrCtrl+,",
                     click: () => {
                         const win = BrowserWindow.getFocusedWindow()
@@ -60,26 +55,26 @@ function getMenuTemplate(): MenuItemConstructorOptions[] {
                     },
                 },
                 { type: "separator" },
-                { role: "services" }, // System-translated
+                { role: "services" },
                 { type: "separator" },
-                { role: "hide" }, // System-translated
-                { role: "hideOthers" }, // System-translated
-                { role: "unhide" }, // System-translated
+                { role: "hide" },
+                { role: "hideOthers" },
+                { role: "unhide" },
                 { type: "separator" },
-                { role: "quit" }, // System-translated
+                { role: "quit" },
             ],
         })
     }
 
     // File menu
     template.push({
-        label: t.file,
+        label: "File",
         submenu: [
             ...(isMac
                 ? []
                 : [
                       {
-                          label: t.settings,
+                          label: "Settings",
                           accelerator: "CmdOrCtrl+,",
                           click: () => {
                               const win = BrowserWindow.getFocusedWindow()
@@ -88,76 +83,76 @@ function getMenuTemplate(): MenuItemConstructorOptions[] {
                       },
                       { type: "separator" } as MenuItemConstructorOptions,
                   ]),
-            isMac ? { role: "close" } : { role: "quit" }, // System-translated
+            isMac ? { role: "close" } : { role: "quit" },
         ],
     })
 
     // Edit menu
     template.push({
-        label: t.edit,
+        label: "Edit",
         submenu: [
-            { role: "undo" }, // System-translated
-            { role: "redo" }, // System-translated
+            { role: "undo" },
+            { role: "redo" },
             { type: "separator" },
-            { role: "cut" }, // System-translated
-            { role: "copy" }, // System-translated
-            { role: "paste" }, // System-translated
+            { role: "cut" },
+            { role: "copy" },
+            { role: "paste" },
             ...(isMac
                 ? [
                       {
                           role: "pasteAndMatchStyle",
-                      } as MenuItemConstructorOptions, // System-translated
-                      { role: "delete" } as MenuItemConstructorOptions, // System-translated
-                      { role: "selectAll" } as MenuItemConstructorOptions, // System-translated
+                      } as MenuItemConstructorOptions,
+                      { role: "delete" } as MenuItemConstructorOptions,
+                      { role: "selectAll" } as MenuItemConstructorOptions,
                   ]
                 : [
-                      { role: "delete" } as MenuItemConstructorOptions, // System-translated
+                      { role: "delete" } as MenuItemConstructorOptions,
                       { type: "separator" } as MenuItemConstructorOptions,
-                      { role: "selectAll" } as MenuItemConstructorOptions, // System-translated
+                      { role: "selectAll" } as MenuItemConstructorOptions,
                   ]),
         ],
     })
 
     // View menu
     template.push({
-        label: t.view,
+        label: "View",
         submenu: [
-            { role: "reload" }, // System-translated
-            { role: "forceReload" }, // System-translated
-            { role: "toggleDevTools" }, // System-translated
+            { role: "reload" },
+            { role: "forceReload" },
+            { role: "toggleDevTools" },
             { type: "separator" },
-            { role: "resetZoom" }, // System-translated
-            { role: "zoomIn" }, // System-translated
-            { role: "zoomOut" }, // System-translated
+            { role: "resetZoom" },
+            { role: "zoomIn" },
+            { role: "zoomOut" },
             { type: "separator" },
-            { role: "togglefullscreen" }, // System-translated
+            { role: "togglefullscreen" },
         ],
     })
 
     // Configuration menu with presets
-    template.push(buildConfigMenu(t))
+    template.push(buildConfigMenu())
 
     // Window menu
     template.push({
-        label: t.window,
+        label: "Window",
         submenu: [
-            { role: "minimize" }, // System-translated
-            { role: "zoom" }, // System-translated
+            { role: "minimize" },
+            { role: "zoom" },
             ...(isMac
                 ? [
                       { type: "separator" } as MenuItemConstructorOptions,
-                      { role: "front" } as MenuItemConstructorOptions, // System-translated
+                      { role: "front" } as MenuItemConstructorOptions,
                   ]
-                : [{ role: "close" } as MenuItemConstructorOptions]), // System-translated
+                : [{ role: "close" } as MenuItemConstructorOptions]),
         ],
     })
 
     // Help menu
     template.push({
-        label: t.help,
+        label: "Help",
         submenu: [
             {
-                label: t.documentation,
+                label: "Documentation",
                 click: async () => {
                     await shell.openExternal(
                         "https://github.com/dayuanjiang/next-ai-draw-io",
@@ -165,7 +160,7 @@ function getMenuTemplate(): MenuItemConstructorOptions[] {
                 },
             },
             {
-                label: t.reportIssue,
+                label: "Report Issue",
                 click: async () => {
                     await shell.openExternal(
                         "https://github.com/dayuanjiang/next-ai-draw-io/issues",
@@ -181,9 +176,7 @@ function getMenuTemplate(): MenuItemConstructorOptions[] {
 /**
  * Build the Configuration menu with presets
  */
-function buildConfigMenu(
-    t: ReturnType<typeof getMenuTranslations>,
-): MenuItemConstructorOptions {
+function buildConfigMenu(): MenuItemConstructorOptions {
     const presets = getAllPresets()
     const currentPresetId = getCurrentPresetId()
 
@@ -223,11 +216,11 @@ function buildConfigMenu(
     }))
 
     return {
-        label: t.configuration,
+        label: "Configuration",
         submenu: [
             ...(presetItems.length > 0
                 ? [
-                      { label: t.switchPreset, enabled: false },
+                      { label: "Switch Preset", enabled: false },
                       { type: "separator" } as MenuItemConstructorOptions,
                       ...presetItems,
                       { type: "separator" } as MenuItemConstructorOptions,
@@ -236,8 +229,8 @@ function buildConfigMenu(
             {
                 label:
                     presetItems.length > 0
-                        ? t.managePresets
-                        : t.addConfigurationPreset,
+                        ? "Manage Presets..."
+                        : "Add Configuration Preset...",
                 click: () => {
                     const win = BrowserWindow.getFocusedWindow()
                     showSettingsWindow(win || undefined)

electron/main/config-manager.ts

@@ -137,7 +137,6 @@ interface ConfigPresetsFile {
     version: 1
     currentPresetId: string | null
     presets: ConfigPreset[]
-    userLocale?: "en" | "zh" | "ja"
 }
 
 const CONFIG_FILE_NAME = "config-presets.json"
@@ -162,7 +161,6 @@ export function loadPresets(): ConfigPresetsFile {
             version: 1,
             currentPresetId: null,
             presets: [],
-            userLocale: undefined,
         }
     }
 
@@ -183,7 +181,6 @@ export function loadPresets(): ConfigPresetsFile {
             version: 1,
             currentPresetId: null,
             presets: [],
-            userLocale: undefined,
         }
     }
 }
@@ -465,21 +462,3 @@ export function getCurrentPresetEnv(): Record<string, string> {
     }
     return env
 }
-
-/**
- * Get user's preferred locale from config
- * Returns undefined if not set
- */
-export function getUserLocale(): "en" | "zh" | "ja" | undefined {
-    const data = loadPresets()
-    return data.userLocale
-}
-
-/**
- * Set user's preferred locale in config
- */
-export function setUserLocale(locale: "en" | "zh" | "ja" | null): void {
-    const data = loadPresets()
-    data.userLocale = locale === null ? undefined : locale
-    savePresets(data)
-}

electron/main/ipc-handlers.ts

@@ -1,5 +1,4 @@
 import { app, BrowserWindow, dialog, ipcMain } from "electron"
-import { rebuildAppMenu } from "./app-menu"
 import {
     applyPresetToEnv,
     type ConfigPreset,
@@ -8,9 +7,7 @@ import {
     getAllPresets,
     getCurrentPreset,
     getCurrentPresetId,
-    getUserLocale,
     setCurrentPreset,
-    setUserLocale,
     updatePreset,
 } from "./config-manager"
 import { restartNextServer } from "./next-server"
@@ -254,32 +251,4 @@ export function registerIpcHandlers(): void {
             }
         }
     })
-
-    // ==================== User Locale ====================
-
-    ipcMain.handle("get-user-locale", () => {
-        return getUserLocale()
-    })
-
-    ipcMain.handle("set-user-locale", (_event, locale: string) => {
-        // Validate locale is one of the supported values
-        if (!["en", "zh", "ja"].includes(locale)) {
-            return { success: false, error: "Invalid locale" }
-        }
-
-        try {
-            setUserLocale(locale as "en" | "zh" | "ja")
-            // Rebuild the menu to reflect the new locale
-            rebuildAppMenu()
-            return { success: true }
-        } catch (error) {
-            return {
-                success: false,
-                error:
-                    error instanceof Error
-                        ? error.message
-                        : "Failed to set locale",
-            }
-        }
-    })
 }

electron/main/menu-i18n.ts

@@ -1,162 +0,0 @@
-/**
- * Internationalization support for Electron menu
- * Translations for menu labels that don't use Electron's built-in roles
- */
-
-import { getUserLocale } from "./config-manager"
-
-export type MenuLocale = "en" | "zh" | "ja"
-
-export interface MenuTranslations {
-    // App menu (macOS only)
-    settings: string
-
-    // File menu
-    file: string
-
-    // Edit menu
-    edit: string
-
-    // View menu
-    view: string
-
-    // Configuration menu
-    configuration: string
-    switchPreset: string
-    managePresets: string
-    addConfigurationPreset: string
-
-    // Window menu
-    window: string
-
-    // Help menu
-    help: string
-    documentation: string
-    reportIssue: string
-}
-
-const translations: Record<MenuLocale, MenuTranslations> = {
-    en: {
-        // App menu
-        settings: "Settings...",
-
-        // File menu
-        file: "File",
-
-        // Edit menu
-        edit: "Edit",
-
-        // View menu
-        view: "View",
-
-        // Configuration menu
-        configuration: "Configuration",
-        switchPreset: "Switch Preset",
-        managePresets: "Manage Presets...",
-        addConfigurationPreset: "Add Configuration Preset...",
-
-        // Window menu
-        window: "Window",
-
-        // Help menu
-        help: "Help",
-        documentation: "Documentation",
-        reportIssue: "Report Issue",
-    },
-
-    zh: {
-        // App menu
-        settings: "设置...",
-
-        // File menu
-        file: "文件",
-
-        // Edit menu
-        edit: "编辑",
-
-        // View menu
-        view: "查看",
-
-        // Configuration menu
-        configuration: "配置",
-        switchPreset: "切换预设",
-        managePresets: "管理预设...",
-        addConfigurationPreset: "添加配置预设...",
-
-        // Window menu
-        window: "窗口",
-
-        // Help menu
-        help: "帮助",
-        documentation: "文档",
-        reportIssue: "报告问题",
-    },
-
-    ja: {
-        // App menu
-        settings: "設定...",
-
-        // File menu
-        file: "ファイル",
-
-        // Edit menu
-        edit: "編集",
-
-        // View menu
-        view: "表示",
-
-        // Configuration menu
-        configuration: "設定",
-        switchPreset: "プリセット切り替え",
-        managePresets: "プリセット管理...",
-        addConfigurationPreset: "設定プリセットを追加...",
-
-        // Window menu
-        window: "ウインドウ",
-
-        // Help menu
-        help: "ヘルプ",
-        documentation: "ドキュメント",
-        reportIssue: "問題を報告",
-    },
-}
-
-/**
- * Get menu translations for a given locale
- * Falls back to English if locale is not supported
- */
-export function getMenuTranslations(locale: string): MenuTranslations {
-    // Normalize locale (e.g., "zh-CN" -> "zh", "ja-JP" -> "ja")
-    const normalized = locale.toLowerCase().split("-")[0]
-
-    if (normalized === "zh") return translations.zh
-    if (normalized === "ja") return translations.ja
-    return translations.en
-}
-
-/**
- * Detect system locale from Electron app
- * Returns one of: "en", "zh", "ja"
- */
-export function detectSystemLocale(appLocale: string): MenuLocale {
-    const normalized = appLocale.toLowerCase().split("-")[0]
-
-    if (normalized === "zh") return "zh"
-    if (normalized === "ja") return "ja"
-    return "en"
-}
-
-/**
- * Get locale from stored preference or system default
- * Checks config file for user's language preference first
- */
-export function getPreferredLocale(appLocale: string): MenuLocale {
-    // Try to get from saved preference first
-    const savedLocale = getUserLocale()
-    if (savedLocale) {
-        return savedLocale
-    }
-
-    // Fall back to system locale
-    return detectSystemLocale(appLocale)
-}

electron/preload/index.ts

@@ -26,9 +26,4 @@ contextBridge.exposeInMainWorld("electronAPI", {
     getProxy: () => ipcRenderer.invoke("get-proxy"),
     setProxy: (config: { httpProxy?: string; httpsProxy?: string }) =>
         ipcRenderer.invoke("set-proxy", config),
-
-    // User locale settings
-    getUserLocale: () => ipcRenderer.invoke("get-user-locale"),
-    setUserLocale: (locale: string) =>
-        ipcRenderer.invoke("set-user-locale", locale),
 })

env.example

@@ -1,6 +1,6 @@
 # AI Provider Configuration
 # AI_PROVIDER: Which provider to use
-# Options: bedrock, openai, anthropic, google, vertexai, azure, ollama, openrouter, deepseek, siliconflow, gateway
+# Options: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow, gateway
 # Default: bedrock
 AI_PROVIDER=bedrock
 
@@ -40,14 +40,6 @@ AI_MODEL=global.anthropic.claude-sonnet-4-5-20250929-v1:0
 # GOOGLE_THINKING_BUDGET=8192                # Optional: Gemini 2.5 thinking budget in tokens (for more/less thinking)
 # GOOGLE_THINKING_LEVEL=high                 # Optional: Gemini 3 thinking level (low/high)
 
-# Google Vertex AI Configuration (Enterprise GCP)
-# For enterprise users needing data residency, VPC Service Controls, or GCP integration
-# GOOGLE_VERTEX_API_KEY=                          # Required: Express Mode API key
-# GOOGLE_VERTEX_BASE_URL=https://...              # Optional: Custom endpoint URL
-# Note: Gemini 2.5/3 models automatically enable reasoning display (includeThoughts: true)
-# GOOGLE_VERTEX_THINKING_BUDGET=8192              # Optional: Gemini 2.5 thinking budget in tokens (1024-100000)
-# GOOGLE_VERTEX_THINKING_LEVEL=high               # Optional: Gemini 3 thinking level (minimal/low/medium/high)
-
 # Azure OpenAI Configuration
 # Configure endpoint using ONE of these methods:
 #   1. AZURE_RESOURCE_NAME - SDK constructs: https://{name}.openai.azure.com/openai/v1{path}
@@ -101,11 +93,6 @@ AI_MODEL=global.anthropic.claude-sonnet-4-5-20250929-v1:0
 # LANGFUSE_SECRET_KEY=sk-lf-...
 # LANGFUSE_BASEURL=https://cloud.langfuse.com  # EU region, use https://us.cloud.langfuse.com for US
 
-# Optional server-side multi-model configuration
-# If set, points to a JSON file with server-provided models (see README for schema).
-# Default: ./ai-models.json in project root
-# AI_MODELS_CONFIG_PATH=/path/to/ai-models.json
-
 # Temperature (Optional)
 # Controls randomness in AI responses. Lower = more deterministic.
 # Leave unset for models that don't support temperature (e.g., GPT-5.1 reasoning models)
@@ -129,8 +116,3 @@ AI_MODEL=global.anthropic.claude-sonnet-4-5-20250929-v1:0
 # Enabled by default. Set to "false" to disable.
 # ENABLE_PDF_INPUT=true
 # NEXT_PUBLIC_MAX_EXTRACTED_CHARS=150000  # Max characters for PDF/text extraction (default: 150000)
-
-# Security Settings (Optional)
-# Allow private/internal URLs for reverse proxy setups (default: true)
-# Set to "false" to block private IPs, localhost, and internal hostnames
-# ALLOW_PRIVATE_URLS=false

hooks/use-model-config.ts

@@ -1,7 +1,6 @@
 "use client"
 
 import { useCallback, useEffect, useState } from "react"
-import type { FlattenedServerModel } from "@/lib/server-model-config"
 import { STORAGE_KEYS } from "@/lib/storage"
 import {
     createEmptyConfig,
@@ -133,56 +132,14 @@ export interface UseModelConfigReturn {
 export function useModelConfig(): UseModelConfigReturn {
     const [config, setConfig] = useState<MultiModelConfig>(createEmptyConfig)
     const [isLoaded, setIsLoaded] = useState(false)
-    const [serverModels, setServerModels] = useState<FlattenedServerModel[]>([])
-    const [serverLoaded, setServerLoaded] = useState(false)
 
-    // Load client config on mount
+    // Load config on mount
     useEffect(() => {
         const loaded = loadConfig()
         setConfig(loaded)
         setIsLoaded(true)
     }, [])
 
-    // Load server models on mount (if any)
-    useEffect(() => {
-        if (typeof window === "undefined") return
-
-        fetch("/api/server-models")
-            .then((res) => {
-                if (!res.ok) {
-                    console.error(
-                        "Failed to load server models:",
-                        res.status,
-                        res.statusText,
-                    )
-                    throw new Error(`Request failed with status ${res.status}`)
-                }
-                return res.json()
-            })
-            .then((data) => {
-                const raw: FlattenedServerModel[] = data?.models || []
-                setServerModels(raw)
-                setServerLoaded(true)
-
-                // Auto-select default server model if no model is currently selected
-                setConfig((prev) => {
-                    if (!prev.selectedModelId && raw.length > 0) {
-                        const defaultModel = raw.find((m) => m.isDefault)
-                        if (defaultModel) {
-                            return { ...prev, selectedModelId: defaultModel.id }
-                        }
-                        // If no default marked, use first server model
-                        return { ...prev, selectedModelId: raw[0].id }
-                    }
-                    return prev
-                })
-            })
-            .catch((error) => {
-                console.error("Error while loading server models:", error)
-                setServerLoaded(true)
-            })
-    }, [])
-
     // Save config whenever it changes (after initial load)
     useEffect(() => {
         if (isLoaded) {
@@ -191,33 +148,9 @@ export function useModelConfig(): UseModelConfigReturn {
     }, [config, isLoaded])
 
     // Derived state
-    const userModels = flattenModels(config)
-
-    const models: FlattenedModel[] = [
-        // Server models (read-only, credentials from env)
-        ...serverModels.map((m) => ({
-            id: m.id,
-            modelId: m.modelId,
-            provider: m.provider,
-            providerLabel: `Server · ${m.providerLabel}`,
-            apiKey: "",
-            baseUrl: undefined,
-            awsAccessKeyId: undefined,
-            awsSecretAccessKey: undefined,
-            awsRegion: undefined,
-            awsSessionToken: undefined,
-            validated: true,
-            source: "server" as const,
-            isDefault: m.isDefault,
-            apiKeyEnv: m.apiKeyEnv,
-            baseUrlEnv: m.baseUrlEnv,
-        })),
-        // User models from local configuration
-        ...userModels,
-    ]
-
+    const models = flattenModels(config)
     const selectedModel = config.selectedModelId
-        ? models.find((m) => m.id === config.selectedModelId)
+        ? findModelById(config, config.selectedModelId)
         : undefined
 
     // Actions
@@ -349,7 +282,7 @@ export function useModelConfig(): UseModelConfigReturn {
 
     return {
         config,
-        isLoaded: isLoaded && serverLoaded,
+        isLoaded,
         models,
         selectedModel,
         selectedModelId: config.selectedModelId,
@@ -381,10 +314,6 @@ export function getSelectedAIConfig(): {
     awsSecretAccessKey: string
     awsRegion: string
     awsSessionToken: string
-    // Selected model ID (for server model lookup)
-    selectedModelId: string
-    // Vertex AI credentials (Express Mode)
-    vertexApiKey: string
 } {
     const empty = {
         accessCode: "",
@@ -396,8 +325,6 @@ export function getSelectedAIConfig(): {
         awsSecretAccessKey: "",
         awsRegion: "",
         awsSessionToken: "",
-        selectedModelId: "",
-        vertexApiKey: "",
     }
 
     if (typeof window === "undefined") return empty
@@ -420,8 +347,6 @@ export function getSelectedAIConfig(): {
             awsSecretAccessKey: "",
             awsRegion: "",
             awsSessionToken: "",
-            selectedModelId: "",
-            vertexApiKey: "",
         }
     }
 
@@ -432,32 +357,12 @@ export function getSelectedAIConfig(): {
         return { ...empty, accessCode }
     }
 
-    // No selected model = use server default (AI_PROVIDER/AI_MODEL/env auto-detect)
+    // No selected model = use server default
     if (!config.selectedModelId) {
         return { ...empty, accessCode }
     }
 
-    // Server-side model selection (id = "server:<name-slug>:<modelId>")
-    // Provider is resolved server-side via findServerModelById()
-    if (config.selectedModelId.startsWith("server:")) {
-        const parts = config.selectedModelId.split(":")
-        const nameSlug = parts[1] || ""
-        const modelId = parts.slice(2).join(":") // Preserve Bedrock-style IDs
-
-        return {
-            ...empty,
-            accessCode,
-            // Note: nameSlug is NOT the provider, but we send it for backwards compat
-            // Server uses selectedModelId to lookup the actual provider
-            aiProvider: nameSlug,
-            aiBaseUrl: "",
-            aiApiKey: "",
-            aiModel: modelId,
-            selectedModelId: config.selectedModelId,
-        }
-    }
-
-    // Find selected user-defined model
+    // Find selected model
     const model = findModelById(config, config.selectedModelId)
     if (!model) {
         return { ...empty, accessCode }
@@ -474,8 +379,5 @@ export function getSelectedAIConfig(): {
         awsSecretAccessKey: model.awsSecretAccessKey || "",
         awsRegion: model.awsRegion || "",
         awsSessionToken: model.awsSessionToken || "",
-        selectedModelId: config.selectedModelId || "",
-        // Vertex AI credentials (Express Mode)
-        vertexApiKey: model.vertexApiKey || "",
     }
 }

lib/ai-providers.ts

@@ -4,7 +4,6 @@ import { azure, createAzure } from "@ai-sdk/azure"
 import { createDeepSeek, deepseek } from "@ai-sdk/deepseek"
 import { createGateway, gateway } from "@ai-sdk/gateway"
 import { createGoogleGenerativeAI, google } from "@ai-sdk/google"
-import { createVertex } from "@ai-sdk/google-vertex"
 import { createOpenAI, openai } from "@ai-sdk/openai"
 import { fromNodeProviderChain } from "@aws-sdk/credential-providers"
 import { createOpenRouter } from "@openrouter/ai-sdk-provider"
@@ -30,13 +29,8 @@ export interface ClientOverrides {
     awsSecretAccessKey?: string | null
     awsRegion?: string | null
     awsSessionToken?: string | null
-    // Vertex AI config
-    vertexApiKey?: string | null // Express Mode API key
     // Custom headers (e.g., for EdgeOne cookie auth)
     headers?: Record<string, string>
-    // Custom env var names for server models (allows multiple API keys per provider)
-    apiKeyEnv?: string
-    baseUrlEnv?: string
 }
 
 // Providers that can be used with client-provided API keys
@@ -44,7 +38,6 @@ const ALLOWED_CLIENT_PROVIDERS: ProviderName[] = [
     "openai",
     "anthropic",
     "google",
-    "vertexai",
     "azure",
     "bedrock",
     "openrouter",
@@ -69,62 +62,6 @@ const ANTHROPIC_BETA_HEADERS = {
     "anthropic-beta": "fine-grained-tool-streaming-2025-05-14",
 }
 
-/**
- * Resolve baseURL based on whether user is providing their own API key.
- * When user provides their own API key, we should NOT fall back to server's
- * baseURL environment variable - user credentials should only be sent to
- * user-specified endpoints or official provider endpoints.
- *
- * @param userApiKey - User-provided API key (if any)
- * @param userBaseUrl - User-provided base URL (if any)
- * @param serverBaseUrl - Server's base URL from environment variable
- * @param defaultBaseUrl - Provider's official/default base URL (optional)
- * @returns The resolved base URL to use
- */
-export function resolveBaseURL(
-    userApiKey: string | null | undefined,
-    userBaseUrl: string | null | undefined,
-    serverBaseUrl: string | undefined,
-    defaultBaseUrl?: string,
-): string | undefined {
-    if (userApiKey) {
-        // User provides their own API key - only use user's baseUrl or default
-        return userBaseUrl || defaultBaseUrl || undefined
-    }
-    // No user API key - fall back to server config
-    return userBaseUrl || serverBaseUrl || defaultBaseUrl || undefined
-}
-
-/**
- * Resolve API key from custom env var name or default env var.
- * Supports multiple API keys per provider via ai-models.json apiKeyEnv config.
- *
- * Priority:
- * 1. User-provided API key (overrides.apiKey)
- * 2. Custom env var from ai-models.json (overrides.apiKeyEnv)
- * 3. Default provider env var (defaultEnvVar)
- */
-function resolveApiKey(
-    overrides: ClientOverrides | undefined,
-    defaultEnvVar: string,
-): string | undefined {
-    if (overrides?.apiKey) return overrides.apiKey
-    if (overrides?.apiKeyEnv) return process.env[overrides.apiKeyEnv]
-    return process.env[defaultEnvVar]
-}
-
-/**
- * Resolve base URL from custom env var name or default env var.
- * Supports multiple base URLs per provider via ai-models.json baseUrlEnv config.
- */
-function resolveBaseUrlEnv(
-    overrides: ClientOverrides | undefined,
-    defaultEnvVar: string,
-): string | undefined {
-    if (overrides?.baseUrlEnv) return process.env[overrides.baseUrlEnv]
-    return process.env[defaultEnvVar]
-}
-
 /**
  * Safely parse integer from environment variable with validation
  */
@@ -159,8 +96,6 @@ function parseIntSafe(
  * - ANTHROPIC_THINKING_TYPE: Anthropic thinking type (enabled)
  * - GOOGLE_THINKING_BUDGET: Google Gemini 2.5 thinking budget in tokens (1024-100000)
  * - GOOGLE_THINKING_LEVEL: Google Gemini 3 thinking level (low/high)
- * - GOOGLE_VERTEX_THINKING_BUDGET: Vertex AI Gemini 2.5 thinking budget in tokens (1024-100000)
- * - GOOGLE_VERTEX_THINKING_LEVEL: Vertex AI Gemini 3 thinking level (low/high)
  * - AZURE_REASONING_EFFORT: Azure/OpenAI reasoning effort (low/medium/high)
  * - AZURE_REASONING_SUMMARY: Azure reasoning summary (none/brief/detailed)
  * - BEDROCK_REASONING_BUDGET_TOKENS: Bedrock Claude reasoning budget in tokens (1024-64000)
@@ -325,46 +260,7 @@ function buildProviderOptions(
             }
             break
         }
-        case "vertexai": {
-            const thinkingBudget = parseIntSafe(
-                process.env.GOOGLE_VERTEX_THINKING_BUDGET,
-                "GOOGLE_VERTEX_THINKING_BUDGET",
-                1024,
-                100000,
-            )
-            const thinkingLevel = process.env.GOOGLE_VERTEX_THINKING_LEVEL
 
-            if (
-                modelId &&
-                (modelId.includes("gemini-2") ||
-                    modelId.includes("gemini-3") ||
-                    modelId.includes("gemini2") ||
-                    modelId.includes("gemini3"))
-            ) {
-                const thinkingConfig: Record<string, any> = {
-                    includeThoughts: true,
-                }
-
-                const isGemini3 =
-                    modelId?.includes("gemini-3") ||
-                    modelId?.includes("gemini3")
-                const isGemini25 =
-                    modelId?.includes("2.5") || modelId?.includes("2-5")
-
-                if (isGemini3 && thinkingLevel) {
-                    // Vertex AI provider in AI SDK supports more granular levels (minimal/low/medium/high)
-                    thinkingConfig.thinkingLevel = thinkingLevel as
-                        | "minimal"
-                        | "low"
-                        | "medium"
-                        | "high"
-                } else if (isGemini25 && thinkingBudget) {
-                    thinkingConfig.thinkingBudget = thinkingBudget
-                }
-                options.google = { thinkingConfig }
-            }
-            break
-        }
         case "azure": {
             const reasoningEffort = process.env.AZURE_REASONING_EFFORT
             const reasoningSummary = process.env.AZURE_REASONING_SUMMARY
@@ -466,7 +362,6 @@ const PROVIDER_ENV_VARS: Record<ProviderName, string | null> = {
     openai: "OPENAI_API_KEY",
     anthropic: "ANTHROPIC_API_KEY",
     google: "GOOGLE_GENERATIVE_AI_API_KEY",
-    vertexai: "GOOGLE_VERTEX_API_KEY",
     azure: "AZURE_API_KEY",
     ollama: null, // No credentials needed for local Ollama
     openrouter: "OPENROUTER_API_KEY",
@@ -514,15 +409,9 @@ function detectProvider(): ProviderName | null {
 
 /**
  * Validate that required API keys are present for the selected provider
- * @param provider - The provider to validate
- * @param customApiKeyEnv - Optional custom env var name (from ai-models.json apiKeyEnv)
  */
-function validateProviderCredentials(
-    provider: ProviderName,
-    customApiKeyEnv?: string,
-): void {
-    // Use custom env var name if provided, otherwise use default
-    const requiredVar = customApiKeyEnv || PROVIDER_ENV_VARS[provider]
+function validateProviderCredentials(provider: ProviderName): void {
+    const requiredVar = PROVIDER_ENV_VARS[provider]
     if (requiredVar && !process.env[requiredVar]) {
         throw new Error(
             `${requiredVar} environment variable is required for ${provider} provider. ` +
@@ -576,7 +465,6 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
     if (
         overrides?.baseUrl &&
         !overrides?.apiKey &&
-        !(overrides?.provider === "vertexai" && overrides?.vertexApiKey) &&
         overrides?.provider !== "edgeone"
     ) {
         throw new Error(
@@ -586,11 +474,7 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
     }
 
     // Check if client is providing their own provider override
-    const isClientOverride = !!(
-        overrides?.provider &&
-        (overrides?.apiKey ||
-            (overrides?.provider === "vertexai" && overrides?.vertexApiKey))
-    )
+    const isClientOverride = !!(overrides?.provider && overrides?.apiKey)
 
     // Use client override if provided, otherwise fall back to env vars
     const modelId = overrides?.modelId || process.env.AI_MODEL
@@ -660,7 +544,7 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
 
     // Only validate server credentials if client isn't providing their own API key
     if (!isClientOverride) {
-        validateProviderCredentials(provider, overrides?.apiKeyEnv)
+        validateProviderCredentials(provider)
     }
 
     console.log(`[AI Provider] Initializing ${provider} with model: ${modelId}`)
@@ -710,16 +594,8 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "openai": {
-            const apiKey = resolveApiKey(overrides, "OPENAI_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "OPENAI_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
+            const apiKey = overrides?.apiKey || process.env.OPENAI_API_KEY
+            const baseURL = overrides?.baseUrl || process.env.OPENAI_BASE_URL
             if (baseURL) {
                 // Custom base URL = third-party proxy, use Chat Completions API
                 // for compatibility (most proxies don't support /responses endpoint)
@@ -737,17 +613,11 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "anthropic": {
-            const apiKey = resolveApiKey(overrides, "ANTHROPIC_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "ANTHROPIC_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-                "https://api.anthropic.com/v1",
-            )
+            const apiKey = overrides?.apiKey || process.env.ANTHROPIC_API_KEY
+            const baseURL =
+                overrides?.baseUrl ||
+                process.env.ANTHROPIC_BASE_URL ||
+                "https://api.anthropic.com/v1"
             const customProvider = createAnthropic({
                 apiKey,
                 baseURL,
@@ -760,19 +630,9 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "google": {
-            const apiKey = resolveApiKey(
-                overrides,
-                "GOOGLE_GENERATIVE_AI_API_KEY",
-            )
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "GOOGLE_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
+            const apiKey =
+                overrides?.apiKey || process.env.GOOGLE_GENERATIVE_AI_API_KEY
+            const baseURL = overrides?.baseUrl || process.env.GOOGLE_BASE_URL
             if (baseURL || overrides?.apiKey) {
                 const customGoogle = createGoogleGenerativeAI({
                     apiKey,
@@ -784,42 +644,11 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             }
             break
         }
-        case "vertexai": {
-            // Express Mode: Use API key for authentication
-            const vertexApiKey =
-                overrides?.vertexApiKey || process.env.GOOGLE_VERTEX_API_KEY
-
-            if (!vertexApiKey) {
-                throw new Error(
-                    "Vertex AI requires an API key for Express Mode. " +
-                        "Get one from Google Cloud Console or set GOOGLE_VERTEX_API_KEY environment variable.",
-                )
-            }
-
-            // Support custom base URL from env or client override
-            const baseURL =
-                overrides?.baseUrl || process.env.GOOGLE_VERTEX_BASE_URL
-
-            const vertexProvider = createVertex({
-                apiKey: vertexApiKey,
-                ...(baseURL && { baseURL }),
-            })
-            model = vertexProvider(modelId)
-            break
-        }
 
         case "azure": {
-            const apiKey = resolveApiKey(overrides, "AZURE_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(overrides, "AZURE_BASE_URL")
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
-            // Only use server's resourceName if user is NOT providing their own API key
-            const resourceName = overrides?.apiKey
-                ? undefined
-                : process.env.AZURE_RESOURCE_NAME
+            const apiKey = overrides?.apiKey || process.env.AZURE_API_KEY
+            const baseURL = overrides?.baseUrl || process.env.AZURE_BASE_URL
+            const resourceName = process.env.AZURE_RESOURCE_NAME
             // Azure requires either baseURL or resourceName to construct the endpoint
             // resourceName constructs: https://{resourceName}.openai.azure.com/openai/v1{path}
             if (baseURL || resourceName || overrides?.apiKey) {
@@ -848,16 +677,9 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             break
 
         case "openrouter": {
-            const apiKey = resolveApiKey(overrides, "OPENROUTER_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "OPENROUTER_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
+            const apiKey = overrides?.apiKey || process.env.OPENROUTER_API_KEY
+            const baseURL =
+                overrides?.baseUrl || process.env.OPENROUTER_BASE_URL
             const openrouter = createOpenRouter({
                 apiKey,
                 ...(baseURL && { baseURL }),
@@ -867,16 +689,8 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "deepseek": {
-            const apiKey = resolveApiKey(overrides, "DEEPSEEK_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "DEEPSEEK_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
+            const apiKey = overrides?.apiKey || process.env.DEEPSEEK_API_KEY
+            const baseURL = overrides?.baseUrl || process.env.DEEPSEEK_BASE_URL
             if (baseURL || overrides?.apiKey) {
                 const customDeepSeek = createDeepSeek({
                     apiKey,
@@ -890,17 +704,11 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "siliconflow": {
-            const apiKey = resolveApiKey(overrides, "SILICONFLOW_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "SILICONFLOW_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-                "https://api.siliconflow.cn/v1",
-            )
+            const apiKey = overrides?.apiKey || process.env.SILICONFLOW_API_KEY
+            const baseURL =
+                overrides?.baseUrl ||
+                process.env.SILICONFLOW_BASE_URL ||
+                "https://api.siliconflow.cn/v1"
             const siliconflowProvider = createOpenAI({
                 apiKey,
                 baseURL,
@@ -910,20 +718,12 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "sglang": {
-            const apiKey = resolveApiKey(overrides, "SGLANG_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "SGLANG_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
+            const apiKey = overrides?.apiKey || process.env.SGLANG_API_KEY
+            const baseURL = overrides?.baseUrl || process.env.SGLANG_BASE_URL
 
             const sglangProvider = createOpenAI({
                 apiKey,
-                ...(baseURL && { baseURL }),
+                baseURL,
                 // Add a custom fetch wrapper to intercept and fix the stream from sglang
                 fetch: async (url, options) => {
                     const response = await fetch(url, options)
@@ -1027,16 +827,9 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             // Vercel AI Gateway - unified access to multiple AI providers
             // Model format: "provider/model" e.g., "openai/gpt-4o", "anthropic/claude-sonnet-4-5"
             // See: https://vercel.com/ai-gateway
-            const apiKey = resolveApiKey(overrides, "AI_GATEWAY_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "AI_GATEWAY_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-            )
+            const apiKey = overrides?.apiKey || process.env.AI_GATEWAY_API_KEY
+            const baseURL =
+                overrides?.baseUrl || process.env.AI_GATEWAY_BASE_URL
             // Only use custom configuration if explicitly set (local dev or custom Gateway)
             // Otherwise undefined → AI SDK uses Vercel default (https://ai-gateway.vercel.sh/v1/ai) + OIDC
             if (baseURL || overrides?.apiKey) {
@@ -1067,17 +860,11 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "doubao": {
-            const apiKey = resolveApiKey(overrides, "DOUBAO_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "DOUBAO_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-                "https://ark.cn-beijing.volces.com/api/v3",
-            )
+            const apiKey = overrides?.apiKey || process.env.DOUBAO_API_KEY
+            const baseURL =
+                overrides?.baseUrl ||
+                process.env.DOUBAO_BASE_URL ||
+                "https://ark.cn-beijing.volces.com/api/v3"
             const lowerModelId = modelId.toLowerCase()
             // Use DeepSeek provider for DeepSeek/Kimi models, OpenAI for others (multimodal support)
             if (
@@ -1100,17 +887,11 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
         }
 
         case "modelscope": {
-            const apiKey = resolveApiKey(overrides, "MODELSCOPE_API_KEY")
-            const serverBaseUrl = resolveBaseUrlEnv(
-                overrides,
-                "MODELSCOPE_BASE_URL",
-            )
-            const baseURL = resolveBaseURL(
-                overrides?.apiKey,
-                overrides?.baseUrl,
-                serverBaseUrl,
-                "https://api-inference.modelscope.cn/v1",
-            )
+            const apiKey = overrides?.apiKey || process.env.MODELSCOPE_API_KEY
+            const baseURL =
+                overrides?.baseUrl ||
+                process.env.MODELSCOPE_BASE_URL ||
+                "https://api-inference.modelscope.cn/v1"
             const modelscopeProvider = createOpenAI({
                 apiKey,
                 baseURL,

lib/i18n/dictionaries/en.json

@@ -100,12 +100,10 @@
         "switchTo": "Switch to",
         "minimal": "Minimal",
         "sketch": "Sketch",
+        "closeProtection": "Close Protection",
+        "closeProtectionDescription": "Show confirmation when leaving the page.",
         "diagramStyle": "Diagram Style",
         "diagramStyleDescription": "Toggle between minimal and styled diagram output.",
-        "sendShortcut": "Send Shortcut",
-        "sendShortcutDescription": "Choose how to send messages.",
-        "enterToSend": "Enter to send",
-        "ctrlEnterToSend": "Cmd/Ctrl+Enter to send",
         "diagramActions": "Diagram Actions",
         "diagramActionsDescription": "Manage diagram history and exports",
         "history": "History",
@@ -305,13 +303,10 @@
         "noModelsFound": "No models found.",
         "default": "Default",
         "serverDefault": "Server Default",
-        "serverModels": "Server Models",
-        "userModels": "User Models",
         "configureModels": "Configure Models...",
         "onlyVerifiedShown": "Only verified models are shown",
         "showUnvalidatedModels": "Show unvalidated models",
         "allModelsShown": "All models are shown (including unvalidated)",
-        "unvalidatedModelWarning": "This model has not been validated",
-        "serverDefaultModel": "Server default model"
+        "unvalidatedModelWarning": "This model has not been validated"
     }
 }

lib/i18n/dictionaries/ja.json

@@ -100,12 +100,10 @@
         "switchTo": "切り替え",
         "minimal": "ミニマル",
         "sketch": "スケッチ",
+        "closeProtection": "ページ離脱確認",
+        "closeProtectionDescription": "ページを離れる際に確認を表示します。",
         "diagramStyle": "ダイアグラムスタイル",
         "diagramStyleDescription": "ミニマルとスタイル付きの出力を切り替えます。",
-        "sendShortcut": "送信ショートカット",
-        "sendShortcutDescription": "メッセージの送信方法を選択します。",
-        "enterToSend": "Enterで送信",
-        "ctrlEnterToSend": "Cmd/Ctrl+Enterで送信",
         "diagramActions": "ダイアグラム操作",
         "diagramActionsDescription": "ダイアグラムの履歴とエクスポートを管理",
         "history": "履歴",
@@ -305,13 +303,10 @@
         "noModelsFound": "モデルが見つかりません。",
         "default": "デフォルト",
         "serverDefault": "サーバーデフォルト",
-        "serverModels": "サーバーモデル",
-        "userModels": "ユーザーモデル",
         "configureModels": "モデルを設定...",
         "onlyVerifiedShown": "検証済みのモデルのみ表示",
         "showUnvalidatedModels": "未検証のモデルを表示",
         "allModelsShown": "すべてのモデルを表示（未検証を含む）",
-        "unvalidatedModelWarning": "このモデルは検証されていません",
-        "serverDefaultModel": "サーバーデフォルトモデル"
+        "unvalidatedModelWarning": "このモデルは検証されていません"
     }
 }

lib/i18n/dictionaries/zh.json

@@ -100,12 +100,10 @@
         "switchTo": "切换到",
         "minimal": "简约",
         "sketch": "草图",
+        "closeProtection": "关闭确认",
+        "closeProtectionDescription": "离开页面时显示确认。",
         "diagramStyle": "图表样式",
         "diagramStyleDescription": "切换简约与精致图表输出模式。",
-        "sendShortcut": "发送快捷键",
-        "sendShortcutDescription": "选择发送消息的方式。",
-        "enterToSend": "回车发送",
-        "ctrlEnterToSend": "Cmd/Ctrl+回车发送",
         "diagramActions": "图表操作",
         "diagramActionsDescription": "管理图表历史记录和导出",
         "history": "历史记录",
@@ -305,13 +303,10 @@
         "noModelsFound": "未找到模型。",
         "default": "默认",
         "serverDefault": "服务器默认",
-        "serverModels": "服务器模型",
-        "userModels": "用户模型",
         "configureModels": "配置模型...",
         "onlyVerifiedShown": "仅显示已验证的模型",
         "showUnvalidatedModels": "显示未验证的模型",
         "allModelsShown": "显示所有模型（包括未验证的）",
-        "unvalidatedModelWarning": "此模型尚未验证",
-        "serverDefaultModel": "服务器默认模型"
+        "unvalidatedModelWarning": "此模型尚未验证"
     }
 }

lib/server-model-config.ts

@@ -1,151 +0,0 @@
-import fs from "fs/promises"
-import path from "path"
-import { z } from "zod"
-import type { ProviderName } from "@/lib/types/model-config"
-import { PROVIDER_INFO } from "@/lib/types/model-config"
-
-export const ProviderNameSchema: z.ZodType<ProviderName> = z
-    .string()
-    .refine((val): val is ProviderName => val in PROVIDER_INFO, {
-        message: "Invalid provider name",
-    })
-
-export const ServerProviderSchema = z.object({
-    name: z.string().min(1),
-    provider: ProviderNameSchema,
-    models: z.array(z.string().min(1)),
-    // Optional: custom environment variable name for API key
-    // e.g., "OPENAI_API_KEY_TEAM_A" instead of default "OPENAI_API_KEY"
-    apiKeyEnv: z.string().min(1).optional(),
-    // Optional: custom environment variable name for base URL
-    baseUrlEnv: z.string().min(1).optional(),
-    // Optional: mark the first model in this provider as the default
-    default: z.boolean().optional(),
-})
-
-export const ServerModelsConfigSchema = z.object({
-    providers: z.array(ServerProviderSchema),
-})
-
-export type ServerProviderConfig = z.infer<typeof ServerProviderSchema>
-export type ServerModelsConfig = z.infer<typeof ServerModelsConfigSchema>
-
-export interface FlattenedServerModel {
-    id: string // "server:<slugified-name>:<modelId>" - name ensures uniqueness for multiple API keys per provider
-    modelId: string
-    provider: ProviderName
-    providerLabel: string
-    isDefault: boolean
-    // Custom env var names for credentials (optional)
-    apiKeyEnv?: string
-    baseUrlEnv?: string
-}
-
-/**
- * Convert provider name to URL-safe slug for use in model ID
- * e.g., "OpenAI Production" → "openai-production"
- */
-function slugify(name: string): string {
-    return name
-        .toLowerCase()
-        .replace(/[^a-z0-9]+/g, "-")
-        .replace(/^-|-$/g, "")
-}
-
-function getConfigPath(): string {
-    const custom = process.env.AI_MODELS_CONFIG_PATH
-    if (custom && custom.trim().length > 0) return custom
-    return path.join(process.cwd(), "ai-models.json")
-}
-
-export async function loadRawServerModelsConfig(): Promise<ServerModelsConfig | null> {
-    // Priority 1: AI_MODELS_CONFIG env var (JSON string) - for cloud deployments
-    const envConfig = process.env.AI_MODELS_CONFIG
-    if (envConfig && envConfig.trim().length > 0) {
-        try {
-            const json = JSON.parse(envConfig)
-            return ServerModelsConfigSchema.parse(json)
-        } catch (err) {
-            console.error(
-                "[server-model-config] Failed to parse AI_MODELS_CONFIG:",
-                err,
-            )
-            return null
-        }
-    }
-
-    // Priority 2: ai-models.json file
-    const configPath = getConfigPath()
-    try {
-        const jsonStr = await fs.readFile(configPath, "utf8")
-        const json = JSON.parse(jsonStr)
-        return ServerModelsConfigSchema.parse(json)
-    } catch (err: any) {
-        if (err?.code === "ENOENT") {
-            return null
-        }
-        console.error(
-            "[server-model-config] Failed to load ai-models.json:",
-            err,
-        )
-        return null
-    }
-}
-
-export async function loadFlattenedServerModels(): Promise<
-    FlattenedServerModel[]
-> {
-    const cfg = await loadRawServerModelsConfig()
-    if (!cfg) return []
-
-    const defaultProvider = process.env.AI_PROVIDER as ProviderName | undefined
-    const defaultModelId = process.env.AI_MODEL
-
-    const flattened: FlattenedServerModel[] = []
-
-    for (const p of cfg.providers) {
-        const providerLabel =
-            p.name || PROVIDER_INFO[p.provider]?.label || p.provider
-
-        // Use slugified name for unique ID (supports multiple API keys per provider)
-        const nameSlug = slugify(p.name)
-
-        for (const modelId of p.models) {
-            const id = `server:${nameSlug}:${modelId}`
-
-            // Default model priority:
-            // 1. From ai-models.json: first model of provider with default: true
-            // 2. From env vars: AI_MODEL matches (legacy behavior)
-            const isDefault =
-                (p.default === true && modelId === p.models[0]) ||
-                (!!defaultModelId &&
-                    modelId === defaultModelId &&
-                    (!defaultProvider || defaultProvider === p.provider))
-
-            flattened.push({
-                id,
-                modelId,
-                provider: p.provider,
-                providerLabel,
-                isDefault,
-                apiKeyEnv: p.apiKeyEnv,
-                baseUrlEnv: p.baseUrlEnv,
-            })
-        }
-    }
-
-    return flattened
-}
-
-/**
- * Find a server model by its ID (format: "server:<slugified-name>:<modelId>")
- * Returns the model config including apiKeyEnv/baseUrlEnv if configured
- */
-export async function findServerModelById(
-    modelId: string,
-): Promise<FlattenedServerModel | null> {
-    if (!modelId.startsWith("server:")) return null
-
-    const models = await loadFlattenedServerModels()
-    return models.find((m) => m.id === modelId) || null
-}

lib/ssrf-protection.ts

@@ -1,63 +0,0 @@
-/**
- * SSRF (Server-Side Request Forgery) protection utilities
- */
-
-/**
- * Check if URL points to private/internal network
- * Blocks: localhost, private IPs, link-local, AWS metadata service
- */
-export function isPrivateUrl(urlString: string): boolean {
-    try {
-        const url = new URL(urlString)
-        const hostname = url.hostname.toLowerCase()
-
-        // Block localhost
-        if (
-            hostname === "localhost" ||
-            hostname === "127.0.0.1" ||
-            hostname === "::1"
-        ) {
-            return true
-        }
-
-        // Block AWS/cloud metadata endpoints
-        if (
-            hostname === "169.254.169.254" ||
-            hostname === "metadata.google.internal"
-        ) {
-            return true
-        }
-
-        // Check for private IPv4 ranges
-        const ipv4Match = hostname.match(
-            /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/,
-        )
-        if (ipv4Match) {
-            const [, a, b] = ipv4Match.map(Number)
-            if (a === 10) return true // 10.0.0.0/8
-            if (a === 172 && b >= 16 && b <= 31) return true // 172.16.0.0/12
-            if (a === 192 && b === 168) return true // 192.168.0.0/16
-            if (a === 169 && b === 254) return true // 169.254.0.0/16 (link-local)
-            if (a === 127) return true // 127.0.0.0/8 (loopback)
-        }
-
-        // Block common internal hostnames
-        if (
-            hostname.endsWith(".local") ||
-            hostname.endsWith(".internal") ||
-            hostname.endsWith(".localhost")
-        ) {
-            return true
-        }
-
-        return false
-    } catch {
-        return true // Invalid URL - block it
-    }
-}
-
-/**
- * Whether private URLs are allowed (defaults to true)
- * Set ALLOW_PRIVATE_URLS=false to block private URLs
- */
-export const allowPrivateUrls = process.env.ALLOW_PRIVATE_URLS !== "false"

lib/storage.ts

@@ -12,6 +12,7 @@ export const STORAGE_KEYS = {
 
     // Settings
     accessCode: "next-ai-draw-io-access-code",
+    closeProtection: "next-ai-draw-io-close-protection",
     accessCodeRequired: "next-ai-draw-io-access-code-required",
     aiProvider: "next-ai-draw-io-ai-provider",
     aiBaseUrl: "next-ai-draw-io-ai-base-url",
@@ -21,7 +22,4 @@ export const STORAGE_KEYS = {
     // Multi-model configuration
     modelConfigs: "next-ai-draw-io-model-configs",
     selectedModelId: "next-ai-draw-io-selected-model-id",
-
-    // Chat input preferences
-    sendShortcut: "next-ai-draw-io-send-shortcut",
 } as const

lib/types/model-config.ts

@@ -4,7 +4,6 @@ export type ProviderName =
     | "openai"
     | "anthropic"
     | "google"
-    | "vertexai"
     | "azure"
     | "bedrock"
     | "ollama"
@@ -37,9 +36,6 @@ export interface ProviderConfig {
     awsSecretAccessKey?: string
     awsRegion?: string
     awsSessionToken?: string // Optional, for temporary credentials
-    // Vertex AI specific fields
-    vertexApiKey?: string // Express Mode API key
-
     models: ModelConfig[]
     validated?: boolean // Has API key been validated
 }
@@ -54,7 +50,7 @@ export interface MultiModelConfig {
 
 // Flattened model for dropdown display
 export interface FlattenedModel {
-    id: string // Model config UUID or synthetic server ID (e.g., "server:provider:modelId")
+    id: string // Model config UUID
     modelId: string // Actual model ID
     provider: ProviderName
     providerLabel: string // Provider display name
@@ -65,17 +61,7 @@ export interface FlattenedModel {
     awsSecretAccessKey?: string
     awsRegion?: string
     awsSessionToken?: string
-    // Vertex AI specific fields
-    vertexApiKey?: string // Express Mode API key
-
     validated?: boolean // Has this model been validated
-    // Source of this model config: user-defined (client) or server-defined
-    source?: "user" | "server"
-    // Whether this model is the server default (matches AI_MODEL env var)
-    isDefault?: boolean
-    // Custom env var names for server models (allows multiple API keys per provider)
-    apiKeyEnv?: string
-    baseUrlEnv?: string
 }
 
 // Provider metadata
@@ -89,7 +75,6 @@ export const PROVIDER_INFO: Record<
         defaultBaseUrl: "https://api.anthropic.com/v1",
     },
     google: { label: "Google" },
-    vertexai: { label: "Google Vertex AI" },
     azure: { label: "Azure OpenAI" },
     bedrock: { label: "Amazon Bedrock" },
     ollama: {
@@ -172,17 +157,6 @@ export const SUGGESTED_MODELS: Partial<Record<ProviderName, string[]>> = {
         // Legacy
         "gemini-pro",
     ],
-    vertexai: [
-        // Gemini 2.5 series
-        "gemini-2.5-pro",
-        "gemini-2.5-flash",
-        // Gemini 2.0 series
-        "gemini-2.0-flash",
-        "gemini-2.0-flash-exp",
-        // Gemini 1.5 series
-        "gemini-1.5-pro",
-        "gemini-1.5-flash",
-    ],
     azure: ["gpt-4o", "gpt-4o-mini", "gpt-4-turbo", "gpt-4", "gpt-35-turbo"],
     bedrock: [
         // Anthropic Claude
@@ -314,7 +288,7 @@ export function createModelConfig(modelId: string): ModelConfig {
     }
 }
 
-// Get all models as flattened list for dropdown (user-defined only)
+// Get all models as flattened list for dropdown
 export function flattenModels(config: MultiModelConfig): FlattenedModel[] {
     const models: FlattenedModel[] = []
 
@@ -336,12 +310,7 @@ export function flattenModels(config: MultiModelConfig): FlattenedModel[] {
                 awsSecretAccessKey: provider.awsSecretAccessKey,
                 awsRegion: provider.awsRegion,
                 awsSessionToken: provider.awsSessionToken,
-                // Vertex AI fields
-                vertexApiKey: provider.vertexApiKey,
-
                 validated: model.validated,
-                source: "user",
-                isDefault: false,
             })
         }
     }

package-lock.json

@@ -15,7 +15,6 @@
                 "@ai-sdk/deepseek": "^2.0.0",
                 "@ai-sdk/gateway": "^3.0.0",
                 "@ai-sdk/google": "^3.0.0",
-                "@ai-sdk/google-vertex": "^4.0.16",
                 "@ai-sdk/openai": "^3.0.0",
                 "@ai-sdk/react": "^3.0.1",
                 "@aws-sdk/client-dynamodb": "^3.957.0",
@@ -207,106 +206,13 @@
             }
         },
         "node_modules/@ai-sdk/google": {
-            "version": "3.0.9",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/google/-/google-3.0.9.tgz",
-            "integrity": "sha512-whRdK0gCZL92UbEHdmQ6edm3cp5ZZSqwE79AIvTEaJR+BeaMUJchTxz/I5w9l3EHGOiDxrKYssklqO3z45KGXg==",
+            "version": "3.0.6",
+            "resolved": "https://registry.npmjs.org/@ai-sdk/google/-/google-3.0.6.tgz",
+            "integrity": "sha512-Nr7E+ouWd/bKO9SFlgLnJJ1+fiGHC07KAeFr08faT+lvkECWlxVox3aL0dec8uCgBDUghYbq7f4S5teUrCc+QQ==",
             "license": "Apache-2.0",
             "dependencies": {
-                "@ai-sdk/provider": "3.0.3",
-                "@ai-sdk/provider-utils": "4.0.7"
-            },
-            "engines": {
-                "node": ">=18"
-            },
-            "peerDependencies": {
-                "zod": "^3.25.76 || ^4.1.8"
-            }
-        },
-        "node_modules/@ai-sdk/google-vertex": {
-            "version": "4.0.16",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/google-vertex/-/google-vertex-4.0.16.tgz",
-            "integrity": "sha512-paY4NGCaqMbd0kssK27ssTMggDybNPIFudJ99QsdzRDJ/Kgo0EjeXZn7G/CoBY/Snmf0fA0PEZW34yV9kloFCQ==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "@ai-sdk/anthropic": "3.0.14",
-                "@ai-sdk/google": "3.0.9",
-                "@ai-sdk/provider": "3.0.3",
-                "@ai-sdk/provider-utils": "4.0.7",
-                "google-auth-library": "^10.5.0"
-            },
-            "engines": {
-                "node": ">=18"
-            },
-            "peerDependencies": {
-                "zod": "^3.25.76 || ^4.1.8"
-            }
-        },
-        "node_modules/@ai-sdk/google-vertex/node_modules/@ai-sdk/anthropic": {
-            "version": "3.0.14",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/anthropic/-/anthropic-3.0.14.tgz",
-            "integrity": "sha512-71BaVg60FM6tN0JaRY7kRb/6qZtHi5R9PFF3NES+kqonY3nVD4PCPP8DoMb/tqxC7f/XezlCqsHrveT2mGfi3A==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "@ai-sdk/provider": "3.0.3",
-                "@ai-sdk/provider-utils": "4.0.7"
-            },
-            "engines": {
-                "node": ">=18"
-            },
-            "peerDependencies": {
-                "zod": "^3.25.76 || ^4.1.8"
-            }
-        },
-        "node_modules/@ai-sdk/google-vertex/node_modules/@ai-sdk/provider": {
-            "version": "3.0.3",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/provider/-/provider-3.0.3.tgz",
-            "integrity": "sha512-qGPYdoAuECaUXPrrz0BPX1SacZQuJ6zky0aakxpW89QW1hrY0eF4gcFm/3L9Pk8C5Fwe+RvBf2z7ZjDhaPjnlg==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "json-schema": "^0.4.0"
-            },
-            "engines": {
-                "node": ">=18"
-            }
-        },
-        "node_modules/@ai-sdk/google-vertex/node_modules/@ai-sdk/provider-utils": {
-            "version": "4.0.7",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/provider-utils/-/provider-utils-4.0.7.tgz",
-            "integrity": "sha512-ItzTdBxRLieGz1GHPwl9X3+HKfwTfFd9MdIa91aXRnOjUVRw68ENjAGKm3FcXGsBLkXDLaFWgjbTVdXe2igs2w==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "@ai-sdk/provider": "3.0.3",
-                "@standard-schema/spec": "^1.1.0",
-                "eventsource-parser": "^3.0.6"
-            },
-            "engines": {
-                "node": ">=18"
-            },
-            "peerDependencies": {
-                "zod": "^3.25.76 || ^4.1.8"
-            }
-        },
-        "node_modules/@ai-sdk/google/node_modules/@ai-sdk/provider": {
-            "version": "3.0.3",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/provider/-/provider-3.0.3.tgz",
-            "integrity": "sha512-qGPYdoAuECaUXPrrz0BPX1SacZQuJ6zky0aakxpW89QW1hrY0eF4gcFm/3L9Pk8C5Fwe+RvBf2z7ZjDhaPjnlg==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "json-schema": "^0.4.0"
-            },
-            "engines": {
-                "node": ">=18"
-            }
-        },
-        "node_modules/@ai-sdk/google/node_modules/@ai-sdk/provider-utils": {
-            "version": "4.0.7",
-            "resolved": "https://registry.npmjs.org/@ai-sdk/provider-utils/-/provider-utils-4.0.7.tgz",
-            "integrity": "sha512-ItzTdBxRLieGz1GHPwl9X3+HKfwTfFd9MdIa91aXRnOjUVRw68ENjAGKm3FcXGsBLkXDLaFWgjbTVdXe2igs2w==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "@ai-sdk/provider": "3.0.3",
-                "@standard-schema/spec": "^1.1.0",
-                "eventsource-parser": "^3.0.6"
+                "@ai-sdk/provider": "3.0.2",
+                "@ai-sdk/provider-utils": "4.0.4"
             },
             "engines": {
                 "node": ">=18"
@@ -9862,6 +9768,7 @@
             "version": "0.11.0",
             "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
             "integrity": "sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==",
+            "dev": true,
             "license": "MIT",
             "optional": true,
             "engines": {
@@ -13560,6 +13467,7 @@
             "version": "7.1.3",
             "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.3.tgz",
             "integrity": "sha512-jRR5wdylq8CkOe6hei19GGZnxM6rBGwFl3Bg0YItGDimvjGtAvdZk4Pu6Cl4u4Igsws4a1fd1Vq3ezrhn4KmFw==",
+            "dev": true,
             "license": "MIT",
             "engines": {
                 "node": ">= 14"
@@ -14183,6 +14091,7 @@
             "version": "1.5.1",
             "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
             "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
+            "dev": true,
             "funding": [
                 {
                     "type": "github",
@@ -14218,15 +14127,6 @@
                 "require-from-string": "^2.0.2"
             }
         },
-        "node_modules/bignumber.js": {
-            "version": "9.3.1",
-            "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.3.1.tgz",
-            "integrity": "sha512-Ko0uX15oIUS7wJ3Rb30Fs6SkVbLmPBAKdlm7q9+ak9bbIeFf0MwuBsQV6z7+X768/cHsfg+WlysDWJcmthjsjQ==",
-            "license": "MIT",
-            "engines": {
-                "node": "*"
-            }
-        },
         "node_modules/bl": {
             "version": "4.1.0",
             "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz",
@@ -14400,12 +14300,6 @@
                 "node": "*"
             }
         },
-        "node_modules/buffer-equal-constant-time": {
-            "version": "1.0.1",
-            "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
-            "integrity": "sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA==",
-            "license": "BSD-3-Clause"
-        },
         "node_modules/buffer-from": {
             "version": "1.1.2",
             "resolved": "https://registry.npmmirror.com/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -15399,15 +15293,6 @@
             "dev": true,
             "license": "BSD-2-Clause"
         },
-        "node_modules/data-uri-to-buffer": {
-            "version": "4.0.1",
-            "resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-4.0.1.tgz",
-            "integrity": "sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A==",
-            "license": "MIT",
-            "engines": {
-                "node": ">= 12"
-            }
-        },
         "node_modules/data-urls": {
             "version": "6.0.0",
             "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-6.0.0.tgz",
@@ -15915,15 +15800,6 @@
             "integrity": "sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==",
             "license": "MIT"
         },
-        "node_modules/ecdsa-sig-formatter": {
-            "version": "1.0.11",
-            "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz",
-            "integrity": "sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "safe-buffer": "^5.0.1"
-            }
-        },
         "node_modules/eciesjs": {
             "version": "0.4.16",
             "resolved": "https://registry.npmjs.org/eciesjs/-/eciesjs-0.4.16.tgz",
@@ -17406,38 +17282,6 @@
                 "pend": "~1.2.0"
             }
         },
-        "node_modules/fetch-blob": {
-            "version": "3.2.0",
-            "resolved": "https://registry.npmjs.org/fetch-blob/-/fetch-blob-3.2.0.tgz",
-            "integrity": "sha512-7yAQpD2UMJzLi1Dqv7qFYnPbaPx7ZfFK6PiIxQ4PfkGPyNyl2Ugx+a/umUonmKqjhM4DnfbMvdX6otXq83soQQ==",
-            "funding": [
-                {
-                    "type": "github",
-                    "url": "https://github.com/sponsors/jimmywarting"
-                },
-                {
-                    "type": "paypal",
-                    "url": "https://paypal.me/jimmywarting"
-                }
-            ],
-            "license": "MIT",
-            "dependencies": {
-                "node-domexception": "^1.0.0",
-                "web-streams-polyfill": "^3.0.3"
-            },
-            "engines": {
-                "node": "^12.20 || >= 14.13"
-            }
-        },
-        "node_modules/fetch-blob/node_modules/web-streams-polyfill": {
-            "version": "3.3.3",
-            "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.3.tgz",
-            "integrity": "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw==",
-            "license": "MIT",
-            "engines": {
-                "node": ">= 8"
-            }
-        },
         "node_modules/file-entry-cache": {
             "version": "8.0.0",
             "resolved": "https://registry.npmjs.org/file-entry-cache/-/file-entry-cache-8.0.0.tgz",
@@ -17644,18 +17488,6 @@
                 "node": ">= 12.20"
             }
         },
-        "node_modules/formdata-polyfill": {
-            "version": "4.0.10",
-            "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
-            "integrity": "sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==",
-            "license": "MIT",
-            "dependencies": {
-                "fetch-blob": "^3.1.2"
-            },
-            "engines": {
-                "node": ">=12.20.0"
-            }
-        },
         "node_modules/forwarded": {
             "version": "0.2.0",
             "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -17789,112 +17621,6 @@
                 "url": "https://github.com/sponsors/ljharb"
             }
         },
-        "node_modules/gaxios": {
-            "version": "7.1.3",
-            "resolved": "https://registry.npmjs.org/gaxios/-/gaxios-7.1.3.tgz",
-            "integrity": "sha512-YGGyuEdVIjqxkxVH1pUTMY/XtmmsApXrCVv5EU25iX6inEPbV+VakJfLealkBtJN69AQmh1eGOdCl9Sm1UP6XQ==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "extend": "^3.0.2",
-                "https-proxy-agent": "^7.0.1",
-                "node-fetch": "^3.3.2",
-                "rimraf": "^5.0.1"
-            },
-            "engines": {
-                "node": ">=18"
-            }
-        },
-        "node_modules/gaxios/node_modules/brace-expansion": {
-            "version": "2.0.2",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
-            "license": "MIT",
-            "dependencies": {
-                "balanced-match": "^1.0.0"
-            }
-        },
-        "node_modules/gaxios/node_modules/glob": {
-            "version": "10.5.0",
-            "resolved": "https://registry.npmjs.org/glob/-/glob-10.5.0.tgz",
-            "integrity": "sha512-DfXN8DfhJ7NH3Oe7cFmu3NCu1wKbkReJ8TorzSAFbSKrlNaQSKfIzqYqVY8zlbs2NLBbWpRiU52GX2PbaBVNkg==",
-            "license": "ISC",
-            "dependencies": {
-                "foreground-child": "^3.1.0",
-                "jackspeak": "^3.1.2",
-                "minimatch": "^9.0.4",
-                "minipass": "^7.1.2",
-                "package-json-from-dist": "^1.0.0",
-                "path-scurry": "^1.11.1"
-            },
-            "bin": {
-                "glob": "dist/esm/bin.mjs"
-            },
-            "funding": {
-                "url": "https://github.com/sponsors/isaacs"
-            }
-        },
-        "node_modules/gaxios/node_modules/minimatch": {
-            "version": "9.0.5",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
-            "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
-            "license": "ISC",
-            "dependencies": {
-                "brace-expansion": "^2.0.1"
-            },
-            "engines": {
-                "node": ">=16 || 14 >=14.17"
-            },
-            "funding": {
-                "url": "https://github.com/sponsors/isaacs"
-            }
-        },
-        "node_modules/gaxios/node_modules/node-fetch": {
-            "version": "3.3.2",
-            "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.3.2.tgz",
-            "integrity": "sha512-dRB78srN/l6gqWulah9SrxeYnxeddIG30+GOqK/9OlLVyLg3HPnr6SqOWTWOXKRwC2eGYCkZ59NNuSgvSrpgOA==",
-            "license": "MIT",
-            "dependencies": {
-                "data-uri-to-buffer": "^4.0.0",
-                "fetch-blob": "^3.1.4",
-                "formdata-polyfill": "^4.0.10"
-            },
-            "engines": {
-                "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
-            },
-            "funding": {
-                "type": "opencollective",
-                "url": "https://opencollective.com/node-fetch"
-            }
-        },
-        "node_modules/gaxios/node_modules/rimraf": {
-            "version": "5.0.10",
-            "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-5.0.10.tgz",
-            "integrity": "sha512-l0OE8wL34P4nJH/H2ffoaniAokM2qSmrtXHmlpvYr5AVVX8msAyW0l8NVJFDxlSK4u3Uh/f41cQheDVdnYijwQ==",
-            "license": "ISC",
-            "dependencies": {
-                "glob": "^10.3.7"
-            },
-            "bin": {
-                "rimraf": "dist/esm/bin.mjs"
-            },
-            "funding": {
-                "url": "https://github.com/sponsors/isaacs"
-            }
-        },
-        "node_modules/gcp-metadata": {
-            "version": "8.1.2",
-            "resolved": "https://registry.npmjs.org/gcp-metadata/-/gcp-metadata-8.1.2.tgz",
-            "integrity": "sha512-zV/5HKTfCeKWnxG0Dmrw51hEWFGfcF2xiXqcA3+J90WDuP0SvoiSO5ORvcBsifmx/FoIjgQN3oNOGaQ5PhLFkg==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "gaxios": "^7.0.0",
-                "google-logging-utils": "^1.0.0",
-                "json-bigint": "^1.0.0"
-            },
-            "engines": {
-                "node": ">=18"
-            }
-        },
         "node_modules/generator-function": {
             "version": "2.0.1",
             "resolved": "https://registry.npmjs.org/generator-function/-/generator-function-2.0.1.tgz",
@@ -18126,33 +17852,6 @@
             "dev": true,
             "license": "MIT"
         },
-        "node_modules/google-auth-library": {
-            "version": "10.5.0",
-            "resolved": "https://registry.npmjs.org/google-auth-library/-/google-auth-library-10.5.0.tgz",
-            "integrity": "sha512-7ABviyMOlX5hIVD60YOfHw4/CxOfBhyduaYB+wbFWCWoni4N7SLcV46hrVRktuBbZjFC9ONyqamZITN7q3n32w==",
-            "license": "Apache-2.0",
-            "dependencies": {
-                "base64-js": "^1.3.0",
-                "ecdsa-sig-formatter": "^1.0.11",
-                "gaxios": "^7.0.0",
-                "gcp-metadata": "^8.0.0",
-                "google-logging-utils": "^1.0.0",
-                "gtoken": "^8.0.0",
-                "jws": "^4.0.0"
-            },
-            "engines": {
-                "node": ">=18"
-            }
-        },
-        "node_modules/google-logging-utils": {
-            "version": "1.1.3",
-            "resolved": "https://registry.npmjs.org/google-logging-utils/-/google-logging-utils-1.1.3.tgz",
-            "integrity": "sha512-eAmLkjDjAFCVXg7A1unxHsLf961m6y17QFqXqAXGj/gVkKFrEICfStRfwUlGNfeCEjNRa32JEWOUTlYXPyyKvA==",
-            "license": "Apache-2.0",
-            "engines": {
-                "node": ">=14"
-            }
-        },
         "node_modules/gopd": {
             "version": "1.2.0",
             "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
@@ -18205,19 +17904,6 @@
             "dev": true,
             "license": "MIT"
         },
-        "node_modules/gtoken": {
-            "version": "8.0.0",
-            "resolved": "https://registry.npmjs.org/gtoken/-/gtoken-8.0.0.tgz",
-            "integrity": "sha512-+CqsMbHPiSTdtSO14O51eMNlrp9N79gmeqmXeouJOhfucAedHw9noVe/n5uJk3tbKE6a+6ZCQg3RPhVhHByAIw==",
-            "license": "MIT",
-            "dependencies": {
-                "gaxios": "^7.0.0",
-                "jws": "^4.0.0"
-            },
-            "engines": {
-                "node": ">=18"
-            }
-        },
         "node_modules/gzip-size": {
             "version": "6.0.0",
             "resolved": "https://registry.npmjs.org/gzip-size/-/gzip-size-6.0.0.tgz",
@@ -18522,6 +18208,7 @@
             "version": "7.0.6",
             "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-7.0.6.tgz",
             "integrity": "sha512-vK9P5/iUfdl95AI+JVyUuIcVtd4ofvtrOr3HNtM2yxC9bnMbEdp3x01OhQNnjb8IJYi38VlTE3mBXwcfvywuSw==",
+            "dev": true,
             "license": "MIT",
             "dependencies": {
                 "agent-base": "^7.1.2",
@@ -19458,6 +19145,7 @@
             "version": "3.4.3",
             "resolved": "https://registry.npmjs.org/jackspeak/-/jackspeak-3.4.3.tgz",
             "integrity": "sha512-OGlZQpz2yfahA/Rd1Y8Cd9SIEsqvXkLVoSw/cgwhnhFMDbsQFeZYoJJ7bIZBS9BcamUW96asq/npPWugM+RQBw==",
+            "dev": true,
             "license": "BlueOak-1.0.0",
             "dependencies": {
                 "@isaacs/cliui": "^8.0.2"
@@ -19590,15 +19278,6 @@
                 "node": ">=6"
             }
         },
-        "node_modules/json-bigint": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/json-bigint/-/json-bigint-1.0.0.tgz",
-            "integrity": "sha512-SiPv/8VpZuWbvLSMtTDU8hEfrZWg/mH/nV/b4o0CYbSxu1UIQPLdwKOCIyLQX+VIPO5vrLX3i8qtqFyhdPSUSQ==",
-            "license": "MIT",
-            "dependencies": {
-                "bignumber.js": "^9.0.0"
-            }
-        },
         "node_modules/json-buffer": {
             "version": "3.0.1",
             "resolved": "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.1.tgz",
@@ -19682,27 +19361,6 @@
                 "node": ">=4.0"
             }
         },
-        "node_modules/jwa": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/jwa/-/jwa-2.0.1.tgz",
-            "integrity": "sha512-hRF04fqJIP8Abbkq5NKGN0Bbr3JxlQ+qhZufXVr0DvujKy93ZCbXZMHDL4EOtodSbCWxOqR8MS1tXA5hwqCXDg==",
-            "license": "MIT",
-            "dependencies": {
-                "buffer-equal-constant-time": "^1.0.1",
-                "ecdsa-sig-formatter": "1.0.11",
-                "safe-buffer": "^5.0.1"
-            }
-        },
-        "node_modules/jws": {
-            "version": "4.0.1",
-            "resolved": "https://registry.npmjs.org/jws/-/jws-4.0.1.tgz",
-            "integrity": "sha512-EKI/M/yqPncGUUh44xz0PxSidXFr/+r0pA70+gIYhjv+et7yxM+s29Y+VGDkovRofQem0fs7Uvf4+YmAdyRduA==",
-            "license": "MIT",
-            "dependencies": {
-                "jwa": "^2.0.1",
-                "safe-buffer": "^5.0.1"
-            }
-        },
         "node_modules/keyv": {
             "version": "4.5.4",
             "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
@@ -24084,6 +23742,7 @@
             "version": "5.2.1",
             "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
             "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+            "dev": true,
             "funding": [
                 {
                     "type": "github",

package.json

@@ -1,6 +1,6 @@
 {
     "name": "next-ai-draw-io",
-    "version": "0.4.11",
+    "version": "0.4.10",
     "license": "Apache-2.0",
     "private": true,
     "main": "dist-electron/main/index.js",
@@ -37,7 +37,6 @@
         "@ai-sdk/deepseek": "^2.0.0",
         "@ai-sdk/gateway": "^3.0.0",
         "@ai-sdk/google": "^3.0.0",
-        "@ai-sdk/google-vertex": "^4.0.16",
         "@ai-sdk/openai": "^3.0.0",
         "@ai-sdk/react": "^3.0.1",
         "@aws-sdk/client-dynamodb": "^3.957.0",
@@ -50,7 +49,6 @@
         "@next/third-parties": "^16.0.6",
         "@opennextjs/cloudflare": "1.14.8",
         "@openrouter/ai-sdk-provider": "^1.5.4",
-        "@opentelemetry/api": "^1.9.0",
         "@opentelemetry/exporter-trace-otlp-http": "^0.209.0",
         "@opentelemetry/sdk-trace-node": "^2.2.0",
         "@radix-ui/react-alert-dialog": "^1.1.15",

packages/mcp-server/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@next-ai-drawio/mcp-server",
-    "version": "0.1.13",
+    "version": "0.1.12",
     "description": "MCP server for Next AI Draw.io - AI-powered diagram generation with real-time browser preview",
     "type": "module",
     "main": "dist/index.js",

packages/mcp-server/src/index.ts

@@ -260,7 +260,6 @@ COMMON STYLES:
             // Update session state
             currentSession.xml = xml
             currentSession.version++
-            currentSession.lastGetDiagramTime = Date.now()
 
             // Push to embedded server state
             setState(currentSession.id, xml)

scripts/afterPack.cjs

@@ -3,49 +3,9 @@
  * Copies node_modules to the standalone directory in the packaged app
  */
 
-const {
-    copyFileSync,
-    existsSync,
-    lstatSync,
-    mkdirSync,
-    readdirSync,
-    statSync,
-} = require("fs")
+const { cpSync, existsSync } = require("fs")
 const path = require("path")
 
-/**
- * Copy directory recursively, converting symlinks to regular files/directories.
- * This is needed because cpSync with dereference:true does NOT convert symlinks.
- * macOS codesign fails if bundle contains symlinks pointing outside the bundle.
- */
-function copyDereferenced(src, dst) {
-    const lstat = lstatSync(src)
-
-    if (lstat.isSymbolicLink()) {
-        // Follow symlink and check what it points to
-        const stat = statSync(src)
-        if (stat.isDirectory()) {
-            // Symlink to directory: recursively copy the directory contents
-            mkdirSync(dst, { recursive: true })
-            for (const entry of readdirSync(src)) {
-                copyDereferenced(path.join(src, entry), path.join(dst, entry))
-            }
-        } else {
-            // Symlink to file: copy the actual file content
-            mkdirSync(path.join(dst, ".."), { recursive: true })
-            copyFileSync(src, dst)
-        }
-    } else if (lstat.isDirectory()) {
-        mkdirSync(dst, { recursive: true })
-        for (const entry of readdirSync(src)) {
-            copyDereferenced(path.join(src, entry), path.join(dst, entry))
-        }
-    } else {
-        mkdirSync(path.join(dst, ".."), { recursive: true })
-        copyFileSync(src, dst)
-    }
-}
-
 module.exports = async (context) => {
     const appOutDir = context.appOutDir
     const resourcesDir = path.join(
@@ -65,7 +25,7 @@ module.exports = async (context) => {
     console.log(`[afterPack] Copying node_modules to ${targetNodeModules}`)
 
     if (existsSync(sourceNodeModules) && existsSync(standaloneDir)) {
-        copyDereferenced(sourceNodeModules, targetNodeModules)
+        cpSync(sourceNodeModules, targetNodeModules, { recursive: true })
         console.log("[afterPack] node_modules copied successfully")
     } else {
         console.error("[afterPack] Source or target directory not found!")

scripts/prepare-electron-build.mjs

@@ -6,54 +6,13 @@
  * that electron-builder can properly include
  */
 
-import {
-    copyFileSync,
-    existsSync,
-    lstatSync,
-    mkdirSync,
-    readdirSync,
-    rmSync,
-    statSync,
-} from "node:fs"
+import { cpSync, existsSync, mkdirSync, rmSync } from "node:fs"
 import { join } from "node:path"
 import { fileURLToPath } from "node:url"
 
 const __dirname = fileURLToPath(new URL(".", import.meta.url))
 const rootDir = join(__dirname, "..")
 
-/**
- * Copy directory recursively, converting symlinks to regular files/directories.
- * This is needed because cpSync with dereference:true does NOT convert symlinks.
- * macOS codesign fails if bundle contains symlinks pointing outside the bundle.
- */
-function copyDereferenced(src, dst) {
-    const lstat = lstatSync(src)
-
-    if (lstat.isSymbolicLink()) {
-        // Follow symlink and check what it points to
-        const stat = statSync(src)
-        if (stat.isDirectory()) {
-            // Symlink to directory: recursively copy the directory contents
-            mkdirSync(dst, { recursive: true })
-            for (const entry of readdirSync(src)) {
-                copyDereferenced(join(src, entry), join(dst, entry))
-            }
-        } else {
-            // Symlink to file: copy the actual file content
-            mkdirSync(join(dst, ".."), { recursive: true })
-            copyFileSync(src, dst)
-        }
-    } else if (lstat.isDirectory()) {
-        mkdirSync(dst, { recursive: true })
-        for (const entry of readdirSync(src)) {
-            copyDereferenced(join(src, entry), join(dst, entry))
-        }
-    } else {
-        mkdirSync(join(dst, ".."), { recursive: true })
-        copyFileSync(src, dst)
-    }
-}
-
 const standaloneDir = join(rootDir, ".next", "standalone")
 const staticDir = join(rootDir, ".next", "static")
 const targetDir = join(rootDir, "electron-standalone")
@@ -71,19 +30,20 @@ mkdirSync(targetDir, { recursive: true })
 
 // Copy standalone (includes node_modules)
 console.log("Copying standalone directory...")
-copyDereferenced(standaloneDir, targetDir)
+cpSync(standaloneDir, targetDir, { recursive: true })
 
 // Copy static files
 console.log("Copying static files...")
 const targetStaticDir = join(targetDir, ".next", "static")
-copyDereferenced(staticDir, targetStaticDir)
+mkdirSync(targetStaticDir, { recursive: true })
+cpSync(staticDir, targetStaticDir, { recursive: true })
 
 // Copy public folder (required for favicon-white.svg and other assets)
 console.log("Copying public folder...")
 const publicDir = join(rootDir, "public")
 const targetPublicDir = join(targetDir, "public")
 if (existsSync(publicDir)) {
-    copyDereferenced(publicDir, targetPublicDir)
+    cpSync(publicDir, targetPublicDir, { recursive: true })
 }
 
 console.log("Done! Files prepared in electron-standalone/")

tests/unit/ai-providers.test.ts

@@ -1,141 +1,5 @@
 import { describe, expect, it } from "vitest"
-import {
-    resolveBaseURL,
-    supportsImageInput,
-    supportsPromptCaching,
-} from "@/lib/ai-providers"
-
-describe("resolveBaseURL", () => {
-    const SERVER_BASE_URL = "https://server-proxy.example.com"
-    const USER_BASE_URL = "https://user-proxy.example.com"
-    const DEFAULT_BASE_URL = "https://api.provider.com/v1"
-    const USER_API_KEY = "user-api-key-123"
-
-    describe("when user provides their own API key", () => {
-        it("uses user's baseUrl when provided", () => {
-            const result = resolveBaseURL(
-                USER_API_KEY,
-                USER_BASE_URL,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(USER_BASE_URL)
-        })
-
-        it("uses default baseUrl when user provides no baseUrl", () => {
-            const result = resolveBaseURL(
-                USER_API_KEY,
-                null,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(DEFAULT_BASE_URL)
-        })
-
-        it("returns undefined when user provides no baseUrl and no default exists", () => {
-            const result = resolveBaseURL(
-                USER_API_KEY,
-                null,
-                SERVER_BASE_URL,
-                undefined,
-            )
-            expect(result).toBeUndefined()
-        })
-
-        it("does NOT use server's baseUrl even when available", () => {
-            const result = resolveBaseURL(
-                USER_API_KEY,
-                undefined,
-                SERVER_BASE_URL,
-                undefined,
-            )
-            // Should NOT return SERVER_BASE_URL
-            expect(result).not.toBe(SERVER_BASE_URL)
-            expect(result).toBeUndefined()
-        })
-
-        it("prefers user's baseUrl over default", () => {
-            const result = resolveBaseURL(
-                USER_API_KEY,
-                USER_BASE_URL,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(USER_BASE_URL)
-        })
-    })
-
-    describe("when using server credentials (no user API key)", () => {
-        it("uses user's baseUrl when provided (overrides server)", () => {
-            const result = resolveBaseURL(
-                null,
-                USER_BASE_URL,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(USER_BASE_URL)
-        })
-
-        it("falls back to server's baseUrl when no user baseUrl", () => {
-            const result = resolveBaseURL(
-                null,
-                null,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(SERVER_BASE_URL)
-        })
-
-        it("falls back to default when no user or server baseUrl", () => {
-            const result = resolveBaseURL(
-                null,
-                null,
-                undefined,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(DEFAULT_BASE_URL)
-        })
-
-        it("returns undefined when no baseUrl available anywhere", () => {
-            const result = resolveBaseURL(null, null, undefined, undefined)
-            expect(result).toBeUndefined()
-        })
-
-        it("handles undefined apiKey same as null", () => {
-            const result = resolveBaseURL(
-                undefined,
-                null,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            expect(result).toBe(SERVER_BASE_URL)
-        })
-    })
-
-    describe("edge cases", () => {
-        it("handles empty string apiKey as falsy (uses server config)", () => {
-            const result = resolveBaseURL(
-                "",
-                null,
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            // Empty string is falsy, so should use server config
-            expect(result).toBe(SERVER_BASE_URL)
-        })
-
-        it("handles empty string baseUrl as falsy", () => {
-            const result = resolveBaseURL(
-                USER_API_KEY,
-                "",
-                SERVER_BASE_URL,
-                DEFAULT_BASE_URL,
-            )
-            // Empty string baseUrl is falsy, should fall back to default
-            expect(result).toBe(DEFAULT_BASE_URL)
-        })
-    })
-})
+import { supportsImageInput, supportsPromptCaching } from "@/lib/ai-providers"
 
 describe("supportsPromptCaching", () => {
     it("returns true for Claude models", () => {

tests/unit/server-model-config.test.ts

@@ -1,85 +0,0 @@
-import { afterEach, describe, expect, it } from "vitest"
-import {
-    loadFlattenedServerModels,
-    type ServerModelsConfig,
-    ServerModelsConfigSchema,
-} from "@/lib/server-model-config"
-
-const ORIGINAL_ENV = { ...process.env }
-
-afterEach(() => {
-    process.env.AI_PROVIDER = ORIGINAL_ENV.AI_PROVIDER
-    process.env.AI_MODEL = ORIGINAL_ENV.AI_MODEL
-    process.env.AI_MODELS_CONFIG_PATH = ORIGINAL_ENV.AI_MODELS_CONFIG_PATH
-    process.env.AI_MODELS_CONFIG = ORIGINAL_ENV.AI_MODELS_CONFIG
-})
-
-describe("ServerModelsConfigSchema", () => {
-    it("accepts valid provider names", () => {
-        const config: ServerModelsConfig = {
-            providers: [
-                {
-                    name: "OpenAI Server",
-                    provider: "openai",
-                    models: ["gpt-4o"],
-                },
-            ],
-        }
-
-        expect(() => ServerModelsConfigSchema.parse(config)).not.toThrow()
-    })
-
-    it("rejects invalid provider names", () => {
-        const invalidConfig = {
-            providers: [
-                {
-                    name: "Invalid Provider",
-                    // Cast to any so we can verify runtime validation, not TypeScript
-                    provider: "invalid-provider" as any,
-                    models: ["model-1"],
-                },
-            ],
-        }
-
-        expect(() =>
-            ServerModelsConfigSchema.parse(invalidConfig as any),
-        ).toThrow()
-    })
-})
-
-describe("loadFlattenedServerModels", () => {
-    it("returns empty array when config file is missing", async () => {
-        // Point to a non-existent config path so fs.readFile throws ENOENT
-        process.env.AI_MODELS_CONFIG_PATH = `non-existent-config-${Date.now()}.json`
-
-        const models = await loadFlattenedServerModels()
-        expect(models).toEqual([])
-    })
-
-    it("flattens providers and marks default model from env var config", async () => {
-        // Use AI_MODELS_CONFIG env var instead of file
-        const config: ServerModelsConfig = {
-            providers: [
-                {
-                    name: "OpenAI Server",
-                    provider: "openai",
-                    models: ["gpt-4o", "gpt-4o-mini"],
-                    default: true,
-                },
-            ],
-        }
-        process.env.AI_MODELS_CONFIG = JSON.stringify(config)
-        process.env.AI_MODELS_CONFIG_PATH = "" // Clear file path
-
-        const models = await loadFlattenedServerModels()
-
-        expect(models.length).toBe(2)
-
-        const defaults = models.filter((m) => m.isDefault)
-        expect(defaults.length).toBe(1)
-
-        const defaultModel = defaults[0]
-        expect(defaultModel.provider).toBe("openai")
-        expect(defaultModel.modelId).toBe("gpt-4o") // First model of default provider
-    })
-})