refactor: reorganize spec regeneration routes and add unit tests

- Removed the old spec regeneration routes and replaced them with a new structure under the app-spec directory for better modularity.
- Introduced unit tests for common functionalities in app-spec, covering state management and error handling.
- Added documentation on route organization patterns to improve maintainability and clarity for future development.

apps/server/src/index.ts

@@ -27,7 +27,6 @@ import { createGitRoutes } from "./routes/git.js";
 import { createSetupRoutes } from "./routes/setup.js";
 import { createSuggestionsRoutes } from "./routes/suggestions.js";
 import { createModelsRoutes } from "./routes/models.js";
-import { createSpecRegenerationRoutes } from "./routes/spec-regeneration.js";
 import { createRunningAgentsRoutes } from "./routes/running-agents.js";
 import { createWorkspaceRoutes } from "./routes/workspace.js";
 import { createTemplatesRoutes } from "./routes/templates.js";
@@ -41,6 +40,7 @@ import { AgentService } from "./services/agent-service.js";
 import { FeatureLoader } from "./services/feature-loader.js";
 import { AutoModeService } from "./services/auto-mode-service.js";
 import { getTerminalService } from "./services/terminal-service.js";
+import { createSpecRegenerationRoutes } from "./routes/app-spec/index.js";
 
 // Load environment variables
 dotenv.config();

apps/server/src/routes/spec-regeneration.ts

@@ -1,8 +0,0 @@
-/**
- * Spec Regeneration routes - HTTP API for AI-powered spec generation
- *
- * This file re-exports from the app-spec directory to maintain backward compatibility.
- * The actual implementation has been split into smaller modules in ./app-spec/
- */
-
-export { createSpecRegenerationRoutes } from "./app-spec/index.js";