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/server/src/services/hermes-cli.ts

@@ -507,6 +507,22 @@ export async function exportProfile(name: string, outputPath?: string): Promise<
   }
 }
 
+/**
+ * Run hermes setup --non-interactive --reset to generate default config for current profile
+ */
+export async function setupReset(): Promise<string> {
+  try {
+    const { stdout, stderr } = await execFileAsync('hermes', ['setup', '--non-interactive', '--reset'], {
+      timeout: 30000,
+      ...execOpts,
+    })
+    return stdout || stderr
+  } catch (err: any) {
+    console.error('[Hermes CLI] setup reset failed:', err.message)
+    throw new Error(`Failed to reset config: ${err.message}`)
+  }
+}
+
 /**
  * Import profile from archive
  */