feat: implement spec synchronization feature for improved project management

- Added a new `/sync` endpoint to synchronize the project specification with the current codebase and feature state.
- Introduced `syncSpec` function to handle the synchronization logic, updating technology stack, implemented features, and roadmap phases.
- Enhanced the running state management to track synchronization tasks alongside existing generation tasks.
- Updated UI components to support synchronization actions, including loading indicators and status updates.
- Improved logging and error handling for better visibility during sync operations.

These changes enhance project management capabilities by ensuring that the specification remains up-to-date with the latest code and feature developments.

apps/ui/src/lib/electron.ts

@@ -437,6 +437,10 @@ export interface SpecRegenerationAPI {
     success: boolean;
     error?: string;
   }>;
+  sync: (projectPath: string) => Promise<{
+    success: boolean;
+    error?: string;
+  }>;
   stop: (projectPath?: string) => Promise<{ success: boolean; error?: string }>;
   status: (projectPath?: string) => Promise<{
     success: boolean;
@@ -2742,6 +2746,30 @@ function createMockSpecRegenerationAPI(): SpecRegenerationAPI {
       return { success: true };
     },
 
+    sync: async (projectPath: string) => {
+      if (mockSpecRegenerationRunning) {
+        return {
+          success: false,
+          error: 'Spec sync is already running',
+        };
+      }
+
+      mockSpecRegenerationRunning = true;
+      console.log(`[Mock] Syncing spec for: ${projectPath}`);
+
+      // Simulate async spec sync (similar to feature generation but simpler)
+      setTimeout(() => {
+        emitSpecRegenerationEvent({
+          type: 'spec_regeneration_complete',
+          message: 'Spec synchronized successfully',
+          projectPath,
+        });
+        mockSpecRegenerationRunning = false;
+      }, 1000);
+
+      return { success: true };
+    },
+
     stop: async (_projectPath?: string) => {
       mockSpecRegenerationRunning = false;
       mockSpecRegenerationPhase = '';