Feat: Show Gemini Usage in usage dropdown and mobile sidebar

apps/ui/src/lib/electron.ts

@@ -1,6 +1,11 @@
 // Type definitions for Electron IPC API
 import type { SessionListItem, Message } from '@/types/electron';
-import type { ClaudeUsageResponse, CodexUsageResponse, ZaiUsageResponse } from '@/store/app-store';
+import type {
+  ClaudeUsageResponse,
+  CodexUsageResponse,
+  ZaiUsageResponse,
+  GeminiUsageResponse,
+} from '@/store/app-store';
 import type {
   IssueValidationVerdict,
   IssueValidationConfidence,
@@ -874,6 +879,9 @@ export interface ElectronAPI {
       error?: string;
     }>;
   };
+  gemini?: {
+    getUsage: () => Promise<GeminiUsageResponse>;
+  };
   settings?: {
     getStatus: () => Promise<{
       success: boolean;
@@ -1418,6 +1426,20 @@ const _getMockElectronAPI = (): ElectronAPI => {
         };
       },
     },
+
+    // Mock Gemini API
+    gemini: {
+      getUsage: async () => {
+        console.log('[Mock] Getting Gemini usage');
+        return {
+          authenticated: true,
+          authMethod: 'cli_login',
+          usedPercent: 0,
+          remainingPercent: 100,
+          lastUpdated: new Date().toISOString(),
+        };
+      },
+    },
   };
 };
 

apps/ui/src/lib/http-api-client.ts

@@ -41,7 +41,11 @@ import type {
   Notification,
 } from '@automaker/types';
 import type { Message, SessionListItem } from '@/types/electron';
-import type { ClaudeUsageResponse, CodexUsageResponse } from '@/store/app-store';
+import type {
+  ClaudeUsageResponse,
+  CodexUsageResponse,
+  GeminiUsage,
+} from '@/store/app-store';
 import type { WorktreeAPI, GitAPI, ModelDefinition, ProviderStatus } from '@/types/electron';
 import type { ModelId, ThinkingLevel, ReasoningEffort, Feature } from '@automaker/types';
 import { getGlobalFileBrowser } from '@/contexts/file-browser-context';
@@ -2688,6 +2692,11 @@ export class HttpApiClient implements ElectronAPI {
     },
   };
 
+  // Gemini API
+  gemini = {
+    getUsage: (): Promise<GeminiUsage> => this.get('/api/gemini/usage'),
+  };
+
   // Context API
   context = {
     describeImage: (

apps/ui/src/lib/query-keys.ts

@@ -101,6 +101,8 @@ export const queryKeys = {
     codex: () => ['usage', 'codex'] as const,
     /** z.ai API usage */
     zai: () => ['usage', 'zai'] as const,
+    /** Gemini API usage */
+    gemini: () => ['usage', 'gemini'] as const,
   },
 
   // ============================================