feat: profile-aware routes, provider sync, channel settings improvements

- Add hermes-profile.ts for dynamic profile path resolution (all backend
  routes now read from active profile directory instead of hardcoded ~/.hermes/)
- Add profile switcher dropdown in sidebar, reload page on switch
- Sync PROVIDER_PRESETS with Hermes CLI (fix keys: kimi-coding→kimi-for-coding,
  kilocode→kilo, ai-gateway→vercel, opencode-zen→opencode; remove moonshot)
- Sync PROVIDER_ENV_MAP with Hermes models.dev + overlays (correct env var names)
- Add gateway restart after adding model provider
- Don't write GLM_BASE_URL/KIMI_BASE_URL for zai/kimi (let Hermes auto-detect)
- Write API keys to .env and credential_pool for all providers
- Built-in providers skip custom_providers in config.yaml
- Add debounce + per-field loading state for channel settings inputs
- Run hermes setup --reset for profiles without config.yaml
- Create empty .env for new profiles (not copied from default)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/client/src/i18n/locales/en.ts

@@ -51,6 +51,11 @@ export default {
     settings: 'Settings',
     connected: 'Connected',
     disconnected: 'Disconnected',
+    updateTip: 'Run "hermes-web-ui update" in terminal to update',
+    updateVersion: 'Upgrade to v{version}',
+    updating: 'Updating...',
+    updateSuccess: 'Update complete, please restart the server',
+    updateFailed: 'Update failed',
   },
 
   // Chat
@@ -163,6 +168,9 @@ export default {
     userProfile: 'User Profile',
     noProfile: 'No profile yet.',
     profilePlaceholder: 'Write your profile...',
+    soul: 'Soul',
+    noSoul: 'No soul configuration yet.',
+    soulPlaceholder: 'Write soul configuration...',
   },
 
   // Models