feat: 新增 Gemini CLI provider adapter

- 新增 gemini_cli adapter 包（client/constants/envelope/plugin/quota）
- 实现 v1internal 协议封装、OAuth enrichment、loadCodeAssist/onboardUser 流程
- 实现配额耗尽检测与冷却元数据管理（RESOURCE_EXHAUSTED 解析）
- 新增 GeminiCliQuotaReader 支持按模型粒度的配额展示
- endpoint check 支持流式回退和 v1internal 响应解包
- health_policy 429 处理增加 Google 配额冷却解析
- error_handler 在限流时同步 Gemini CLI 配额状态
- 前端添加 Gemini CLI provider 类型选项和 OAuth 图标
- 新增 preset models（gemini-2.5-pro/flash, gemini-3-pro/flash, gemini-3.1-pro）
- 新增 gemini_cli quota 单元测试

Closes #216

Co-authored-by: Entropy.Xu <entropy.xu@cloudhabitatsh.com>

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

@@ -51,6 +51,9 @@
                   <SelectItem value="codex">
                     Codex
                   </SelectItem>
+                  <SelectItem value="gemini_cli">
+                    Gemini CLI
+                  </SelectItem>
                   <SelectItem value="kiro">
                     Kiro
                   </SelectItem>
@@ -73,7 +76,7 @@
                     Codex
                   </SelectItem>
                   <SelectItem value="gemini_cli">
-                    GeminiCli
+                    Gemini CLI
                   </SelectItem>
                   <SelectItem value="kiro">
                     Kiro

frontend/src/utils/oauth-icons.ts

@@ -3,6 +3,7 @@ export const OAUTH_ICONS: Record<string, string> = {
   linuxdo: `<svg viewBox="0 0 120 120" xmlns="http://www.w3.org/2000/svg"><clipPath id="ld"><circle cx="60" cy="60" r="47"/></clipPath><circle fill="#f0f0f0" cx="60" cy="60" r="50"/><rect fill="#1c1c1e" clip-path="url(#ld)" x="10" y="10" width="100" height="30"/><rect fill="#f0f0f0" clip-path="url(#ld)" x="10" y="40" width="100" height="40"/><rect fill="#ffb003" clip-path="url(#ld)" x="10" y="80" width="100" height="30"/></svg>`,
   github: `<svg viewBox="0 0 24 24" fill="currentColor"><path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/></svg>`,
   google: `<svg viewBox="0 0 24 24"><path fill="#4285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/><path fill="#34A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/><path fill="#FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/><path fill="#EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/></svg>`,
+  gemini_cli: `<svg viewBox="0 0 24 24"><path fill="#4285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/><path fill="#34A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/><path fill="#FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/><path fill="#EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/></svg>`,
 }
 
 // Default icon when provider type is not found

frontend/src/views/admin/PoolManagement.vue

@@ -1353,6 +1353,7 @@ const poolHeaderMetaText = computed(() => {
 
 const showAccountQuotaColumn = computed(() => {
   return selectedProviderType.value === 'codex'
+    || selectedProviderType.value === 'gemini_cli'
     || selectedProviderType.value === 'kiro'
     || selectedProviderType.value === 'antigravity'
 })