chore: remove debug endpoints and update configuration

- Removed debug-packages and test-sync API endpoints no longer needed
- Extracted sync status management into shared lib/sync/status module
- Updated Next.js config to remove deprecated experimental appDir flag
- Added port specification to production start script for consistency

src/lib/database/schema.sql

@@ -32,7 +32,7 @@ CREATE TABLE packages (
     id VARCHAR(100) PRIMARY KEY,
     name VARCHAR(255) NOT NULL,
     description TEXT,
-    version VARCHAR(50),
+    version VARCHAR(255),
     platform_id VARCHAR(50) NOT NULL REFERENCES platforms(id),
     category_id INTEGER REFERENCES categories(id),
     license_id INTEGER REFERENCES licenses(id),

src/lib/sync/status.ts

@@ -0,0 +1,19 @@
+// Global sync state (in production, use Redis or database)
+let syncInProgress = false
+let syncProgress = { message: '', progress: 0, total: 100 }
+
+// Export functions for other endpoints to use
+export function setSyncProgress(message: string, progress?: number, total?: number) {
+  syncProgress = { message, progress: progress || 0, total: total || 100 }
+}
+
+export function setSyncInProgress(inProgress: boolean) {
+  syncInProgress = inProgress
+}
+
+export function getSyncStatus() {
+  return {
+    inProgress: syncInProgress,
+    progress: syncProgress
+  }
+}