fix(dashboard): support unified config in overview and file watcher

- overview-routes: Use ProfileRegistry for account count, merge both
  legacy and unified sources
- file-watcher: Add config.yaml to watch list for real-time updates
  in unified mode

Related to #203

src/web-server/file-watcher.ts

@@ -22,7 +22,8 @@ export function createFileWatcher(onChange: FileChangeCallback): FSWatcher {
 
   const watcher = chokidar.watch(
     [
-      path.join(ccsDir, 'config.json'),
+      path.join(ccsDir, 'config.json'), // Legacy config
+      path.join(ccsDir, 'config.yaml'), // Unified config
       path.join(ccsDir, '*.settings.json'),
       path.join(ccsDir, 'profiles.json'),
       path.join(ccsDir, 'cliproxy', 'sessions.json'), // Proxy session tracking
@@ -41,7 +42,7 @@ export function createFileWatcher(onChange: FileChangeCallback): FSWatcher {
     const basename = path.basename(filePath);
     let type: FileChangeEvent['type'];
 
-    if (basename === 'config.json') {
+    if (basename === 'config.json' || basename === 'config.yaml') {
       type = 'config-changed';
     } else if (basename === 'profiles.json') {
       type = 'profiles-changed';

src/web-server/overview-routes.ts

@@ -5,12 +5,11 @@
  */
 
 import { Router, Request, Response } from 'express';
-import * as fs from 'fs';
+import { loadConfig } from '../utils/config-manager';
-import * as path from 'path';
-import { getCcsDir, loadConfig } from '../utils/config-manager';
 import { runHealthChecks } from './health-service';
 import { getAllAuthStatus, initializeAccounts } from '../cliproxy/auth-handler';
 import { getVersion } from '../utils/version';
+import ProfileRegistry from '../auth/profile-registry';
 
 export const overviewRoutes = Router();
 
@@ -64,12 +63,16 @@ overviewRoutes.get('/', async (_req: Request, res: Response) => {
 
 function getAccountCount(): number {
   try {
-    const profilesPath = path.join(getCcsDir(), 'profiles.json');
+    const registry = new ProfileRegistry();
 
-    if (!fs.existsSync(profilesPath)) return 0;
+    // Merge legacy (profiles.json) and unified (config.yaml) accounts
+    const legacyProfiles = registry.getAllProfiles();
+    const unifiedAccounts = registry.getAllAccountsUnified();
 
-    const data = JSON.parse(fs.readFileSync(profilesPath, 'utf8'));
+    // Count unique accounts (unified takes precedence for duplicates)
-    return Object.keys(data.profiles || {}).length;
+    const allNames = new Set([...Object.keys(legacyProfiles), ...Object.keys(unifiedAccounts)]);
+
+    return allNames.size;
   } catch {
     return 0;
   }