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

src/tests/unit/usage-handler.test.ts

@@ -25,7 +25,8 @@ vi.mock('../../ipc/database/cloudHandler', () => ({
   ensureDatabaseInitialized: vi.fn(),
 }));
 
-vi.mock('../../utils/paths', () => ({
+vi.mock('../../utils/paths', () => ({
+  IS_DEV_ENVIRONMENT: false,
   getCloudAccountsDbPath: vi.fn(() => '/mock/db/path.sqlite'),
 }));