test: fix test environments failing due to missing IS_DEV_ENVIRONMENT mock export

src/tests/unit/ipc/device-handler.test.ts

@@ -52,7 +52,8 @@ vi.mock('../../../utils/logger', () => ({
   },
 }));
 
-vi.mock('../../../utils/paths', () => ({
+vi.mock('../../../utils/paths', () => ({
+  IS_DEV_ENVIRONMENT: false,
   getGeminiNexusStoragePaths: vi.fn().mockReturnValue(['/tmp/storage.json']),
   getGeminiNexusDbPaths: vi.fn().mockReturnValue(['/tmp/state.vscdb']),
   getAgentDir: vi.fn().mockReturnValue('/tmp/agent'),