fix(cliproxy): address edge cases in sync module

- Reset isSyncing flag in stopAutoSyncWatcher (prevents stale state)
- Validate empty profile names in mapProfileToClaudeKey
- Add whitespace validation in API routes (POST/DELETE /aliases)
- Add Number.isInteger check for port validation
- Wrap response.json() in try-catch for React hooks (handles non-JSON 502)

src/cliproxy/sync/auto-sync-watcher.ts

@@ -152,6 +152,9 @@ export async function stopAutoSyncWatcher(): Promise<void> {
     watcherInstance = null;
     log('Watcher stopped');
   }
+
+  // Reset flag to prevent stale state
+  isSyncing = false;
 }
 
 /**

src/cliproxy/sync/profile-mapper.ts

@@ -111,7 +111,11 @@ export function mapProfileToClaudeKey(profile: SyncableProfile): ClaudeKey | nul
   const baseUrl = env.ANTHROPIC_BASE_URL;
 
   // Generate prefix from profile name (e.g., "glm" -> "glm-")
-  const prefix = `${sanitizeProfileName(profile.name)}-`;
+  const sanitizedName = sanitizeProfileName(profile.name);
+  if (!sanitizedName || sanitizedName === '') {
+    return null; // Skip profiles with invalid names
+  }
+  const prefix = `${sanitizedName}-`;
 
   // Load model aliases for this profile
   const aliases = getProfileAliases(profile.name);