refactor: 重构限流系统和健康监控，支持按 API 格式区分

- 将 adaptive_concurrency 重命名为 adaptive_rpm，从并发控制改为 RPM 控制
- 健康监控器支持按 API 格式独立管理健康度和熔断器状态
- 新增 model_permissions 模块，支持按格式配置允许的模型
- 重构前端提供商相关表单组件，新增 Collapsible UI 组件
- 新增数据库迁移脚本支持新的数据结构

frontend/src/features/providers/components/ProviderFormDialog.vue

@@ -4,47 +4,29 @@
     :title="isEditMode ? '编辑提供商' : '添加提供商'"
     :description="isEditMode ? '更新提供商配置。API 端点和密钥需在详情页面单独管理。' : '创建新的提供商配置。创建后可以为其添加 API 端点和密钥。'"
     :icon="isEditMode ? SquarePen : Server"
-    size="2xl"
+    size="xl"
     @update:model-value="handleDialogUpdate"
   >
     <form
-      class="space-y-6"
+      class="space-y-5"
       @submit.prevent="handleSubmit"
     >
       <!-- 基本信息 -->
-      <div class="space-y-4">
+      <div class="space-y-3">
         <h3 class="text-sm font-medium border-b pb-2">
           基本信息
         </h3>
 
-        <!-- 添加模式显示提供商标识 -->
-        <div
-          v-if="!isEditMode"
-          class="space-y-2"
-        >
-          <Label for="name">提供商标识 *</Label>
-          <Input
-            id="name"
-            v-model="form.name"
-            placeholder="例如: openai-primary"
-            required
-          />
-          <p class="text-xs text-muted-foreground">
-            唯一ID，创建后不可修改
-          </p>
-        </div>
-
         <div class="grid grid-cols-2 gap-4">
-          <div class="space-y-2">
-            <Label for="display_name">显示名称 *</Label>
+          <div class="space-y-1.5">
+            <Label for="name">名称 *</Label>
             <Input
-              id="display_name"
-              v-model="form.display_name"
+              id="name"
+              v-model="form.name"
               placeholder="例如: OpenAI 主账号"
-              required
             />
           </div>
-          <div class="space-y-2">
+          <div class="space-y-1.5">
             <Label for="website">主站链接</Label>
             <Input
               id="website"
@@ -55,24 +37,28 @@
           </div>
         </div>
 
-        <div class="space-y-2">
+        <div class="space-y-1.5">
           <Label for="description">描述</Label>
-          <Textarea
+          <Input
             id="description"
             v-model="form.description"
             placeholder="提供商描述（可选）"
-            rows="2"
           />
         </div>
       </div>
 
-      <!-- 计费与限流 -->
-      <div class="space-y-4">
-        <h3 class="text-sm font-medium border-b pb-2">
-          计费与限流
-        </h3>
+      <!-- 计费与限流 / 请求配置 -->
+      <div class="space-y-3">
         <div class="grid grid-cols-2 gap-4">
-          <div class="space-y-2">
+          <h3 class="text-sm font-medium border-b pb-2">
+            计费与限流
+          </h3>
+          <h3 class="text-sm font-medium border-b pb-2">
+            请求配置
+          </h3>
+        </div>
+        <div class="grid grid-cols-2 gap-4">
+          <div class="space-y-1.5">
             <Label>计费类型</Label>
             <Select
               v-model="form.billing_type"
@@ -82,27 +68,35 @@
                 <SelectValue />
               </SelectTrigger>
               <SelectContent>
-                <SelectItem value="monthly_quota">
-                  月卡额度
-                </SelectItem>
-                <SelectItem value="pay_as_you_go">
-                  按量付费
-                </SelectItem>
-                <SelectItem value="free_tier">
-                  免费套餐
-                </SelectItem>
+                <SelectItem value="monthly_quota">月卡额度</SelectItem>
+                <SelectItem value="pay_as_you_go">按量付费</SelectItem>
+                <SelectItem value="free_tier">免费套餐</SelectItem>
               </SelectContent>
             </Select>
           </div>
-          <div class="space-y-2">
-            <Label>RPM 限制</Label>
-            <Input
-              :model-value="form.rpm_limit ?? ''"
-              type="number"
-              min="0"
-              placeholder="不限制请留空"
-              @update:model-value="(v) => form.rpm_limit = parseNumberInput(v)"
-            />
+          <div class="grid grid-cols-2 gap-4">
+            <div class="space-y-1.5">
+              <Label>超时时间 (秒)</Label>
+              <Input
+                :model-value="form.timeout ?? ''"
+                type="number"
+                min="1"
+                max="600"
+                placeholder="默认 300"
+                @update:model-value="(v) => form.timeout = parseNumberInput(v)"
+              />
+            </div>
+            <div class="space-y-1.5">
+              <Label>最大重试次数</Label>
+              <Input
+                :model-value="form.max_retries ?? ''"
+                type="number"
+                min="0"
+                max="10"
+                placeholder="默认 2"
+                @update:model-value="(v) => form.max_retries = parseNumberInput(v)"
+              />
+            </div>
           </div>
         </div>
 
@@ -111,52 +105,94 @@
           v-if="form.billing_type === 'monthly_quota'"
           class="grid grid-cols-2 gap-4 p-3 border rounded-lg bg-muted/50"
         >
-          <div class="space-y-2">
+          <div class="space-y-1.5">
             <Label class="text-xs">周期额度 (USD)</Label>
             <Input
               :model-value="form.monthly_quota_usd ?? ''"
               type="number"
               step="0.01"
               min="0"
-              class="h-9"
               @update:model-value="(v) => form.monthly_quota_usd = parseNumberInput(v, { allowFloat: true })"
             />
           </div>
-          <div class="space-y-2">
+          <div class="space-y-1.5">
             <Label class="text-xs">重置周期 (天)</Label>
             <Input
               :model-value="form.quota_reset_day ?? ''"
               type="number"
               min="1"
               max="365"
-              class="h-9"
               @update:model-value="(v) => form.quota_reset_day = parseNumberInput(v) ?? 30"
             />
           </div>
-          <div class="space-y-2">
+          <div class="space-y-1.5">
             <Label class="text-xs">
-              周期开始时间
-              <span class="text-red-500">*</span>
+              周期开始时间 <span class="text-red-500">*</span>
             </Label>
             <Input
               v-model="form.quota_last_reset_at"
               type="datetime-local"
-              class="h-9"
             />
-            <p class="text-xs text-muted-foreground">
-              系统会自动统计从该时间点开始的使用量
-            </p>
           </div>
-          <div class="space-y-2">
+          <div class="space-y-1.5">
             <Label class="text-xs">过期时间</Label>
             <Input
               v-model="form.quota_expires_at"
               type="datetime-local"
-              class="h-9"
             />
-            <p class="text-xs text-muted-foreground">
-              留空表示永久有效
-            </p>
+          </div>
+        </div>
+      </div>
+
+      <!-- 代理配置 -->
+      <div class="space-y-3">
+        <div class="flex items-center justify-between">
+          <h3 class="text-sm font-medium">
+            代理配置
+          </h3>
+          <div class="flex items-center gap-2">
+            <Switch
+              :model-value="form.proxy_enabled"
+              @update:model-value="(v: boolean) => form.proxy_enabled = v"
+            />
+            <span class="text-sm text-muted-foreground">启用代理</span>
+          </div>
+        </div>
+        <div
+          v-if="form.proxy_enabled"
+          class="grid grid-cols-2 gap-4 p-3 border rounded-lg bg-muted/50"
+        >
+          <div class="space-y-1.5">
+            <Label class="text-xs">代理地址 *</Label>
+            <Input
+              v-model="form.proxy_url"
+              placeholder="http://proxy:port 或 socks5://proxy:port"
+            />
+          </div>
+          <div class="grid grid-cols-2 gap-3">
+            <div class="space-y-1.5">
+              <Label class="text-xs">用户名</Label>
+              <Input
+                v-model="form.proxy_username"
+                placeholder="可选"
+                autocomplete="off"
+                data-form-type="other"
+                data-lpignore="true"
+                data-1p-ignore="true"
+              />
+            </div>
+            <div class="space-y-1.5">
+              <Label class="text-xs">密码</Label>
+              <Input
+                v-model="form.proxy_password"
+                type="password"
+                placeholder="可选"
+                autocomplete="new-password"
+                data-form-type="other"
+                data-lpignore="true"
+                data-1p-ignore="true"
+              />
+            </div>
           </div>
         </div>
       </div>
@@ -172,7 +208,7 @@
         取消
       </Button>
       <Button
-        :disabled="loading || !form.display_name || (!isEditMode && !form.name)"
+        :disabled="loading || !form.name"
         @click="handleSubmit"
       >
         {{ loading ? (isEditMode ? '保存中...' : '创建中...') : (isEditMode ? '保存' : '创建') }}
@@ -187,13 +223,13 @@ import {
   Dialog,
   Button,
   Input,
-  Textarea,
   Label,
   Select,
   SelectTrigger,
   SelectValue,
   SelectContent,
   SelectItem,
+  Switch,
 } from '@/components/ui'
 import { Server, SquarePen } from 'lucide-vue-next'
 import { useToast } from '@/composables/useToast'
@@ -223,7 +259,6 @@ const internalOpen = computed(() => props.modelValue)
 // 表单数据
 const form = ref({
   name: '',
-  display_name: '',
   description: '',
   website: '',
   // 计费配置
@@ -232,19 +267,25 @@ const form = ref({
   quota_reset_day: 30,
   quota_last_reset_at: '',  // 周期开始时间
   quota_expires_at: '',
-  rpm_limit: undefined as string | number | undefined,
   provider_priority: 999,
   // 状态配置
   is_active: true,
   rate_limit: undefined as number | undefined,
   concurrent_limit: undefined as number | undefined,
+  // 请求配置
+  timeout: undefined as number | undefined,
+  max_retries: undefined as number | undefined,
+  // 代理配置（扁平化便于表单绑定）
+  proxy_enabled: false,
+  proxy_url: '',
+  proxy_username: '',
+  proxy_password: '',
 })
 
 // 重置表单
 function resetForm() {
   form.value = {
     name: '',
-    display_name: '',
     description: '',
     website: '',
     billing_type: 'pay_as_you_go',
@@ -252,11 +293,18 @@ function resetForm() {
     quota_reset_day: 30,
     quota_last_reset_at: '',
     quota_expires_at: '',
-    rpm_limit: undefined,
     provider_priority: 999,
     is_active: true,
     rate_limit: undefined,
     concurrent_limit: undefined,
+    // 请求配置
+    timeout: undefined,
+    max_retries: undefined,
+    // 代理配置
+    proxy_enabled: false,
+    proxy_url: '',
+    proxy_username: '',
+    proxy_password: '',
   }
 }
 
@@ -264,9 +312,9 @@ function resetForm() {
 function loadProviderData() {
   if (!props.provider) return
 
+  const proxy = props.provider.proxy
   form.value = {
     name: props.provider.name,
-    display_name: props.provider.display_name,
     description: props.provider.description || '',
     website: props.provider.website || '',
     billing_type: (props.provider.billing_type as 'monthly_quota' | 'pay_as_you_go' | 'free_tier') || 'pay_as_you_go',
@@ -276,11 +324,18 @@ function loadProviderData() {
       new Date(props.provider.quota_last_reset_at).toISOString().slice(0, 16) : '',
     quota_expires_at: props.provider.quota_expires_at ?
       new Date(props.provider.quota_expires_at).toISOString().slice(0, 16) : '',
-    rpm_limit: props.provider.rpm_limit ?? undefined,
     provider_priority: props.provider.provider_priority || 999,
     is_active: props.provider.is_active,
     rate_limit: undefined,
     concurrent_limit: undefined,
+    // 请求配置
+    timeout: props.provider.timeout ?? undefined,
+    max_retries: props.provider.max_retries ?? undefined,
+    // 代理配置
+    proxy_enabled: proxy?.enabled ?? false,
+    proxy_url: proxy?.url || '',
+    proxy_username: proxy?.username || '',
+    proxy_password: proxy?.password || '',
   }
 }
 
@@ -302,17 +357,37 @@ const handleSubmit = async () => {
     return
   }
 
+  // 启用代理时必须填写代理地址
+  if (form.value.proxy_enabled && !form.value.proxy_url) {
+    showError('启用代理时必须填写代理地址', '验证失败')
+    return
+  }
+
   loading.value = true
   try {
+    // 构建代理配置
+    const proxy = form.value.proxy_enabled ? {
+      url: form.value.proxy_url,
+      username: form.value.proxy_username || undefined,
+      password: form.value.proxy_password || undefined,
+      enabled: true,
+    } : null
+
     const payload = {
-      ...form.value,
-      rpm_limit:
-        form.value.rpm_limit === undefined || form.value.rpm_limit === ''
-          ? null
-          : Number(form.value.rpm_limit),
-      // 空字符串时不发送
+      name: form.value.name,
+      description: form.value.description || undefined,
+      website: form.value.website || undefined,
+      billing_type: form.value.billing_type,
+      monthly_quota_usd: form.value.monthly_quota_usd,
+      quota_reset_day: form.value.quota_reset_day,
       quota_last_reset_at: form.value.quota_last_reset_at || undefined,
       quota_expires_at: form.value.quota_expires_at || undefined,
+      provider_priority: form.value.provider_priority,
+      is_active: form.value.is_active,
+      // 请求配置
+      timeout: form.value.timeout ?? undefined,
+      max_retries: form.value.max_retries ?? undefined,
+      proxy,
     }
 
     if (isEditMode.value && props.provider) {