feat(dashboard): add quota monitoring, process list, and command history

- New API endpoints: /providers/quota, /recent-commands, /running-processes
- New grid-based dashboard layout with cards for tools, quota, processes, commands
- Improved OnboardingWizard with required API key validation and scanning feedback
- Auto-initialize config on first run

💘 Generated with Crush

Assisted-by: MiniMax-M2.7 via Crush <crush@charm.land>

web/src/api/client.js

@@ -37,6 +37,9 @@ const api = {
   exportSkill: (name) => request('/skills/export', { method: 'POST', body: JSON.stringify({ name }) }),
   importSkill: (path) => request('/skills/import', { method: 'POST', body: JSON.stringify({ import_path: path }) }),
   getDashboardStatus: () => request('/dashboard/status'),
+  getProvidersQuota: () => request('/providers/quota'),
+  getRecentCommands: () => request('/recent-commands'),
+  getRunningProcesses: () => request('/running-processes'),
   savePreferences: (prefs) => request('/preferences', { method: 'PUT', body: JSON.stringify(prefs) }),
   saveProfile: (profile) => request('/config/profile', { method: 'PUT', body: JSON.stringify(profile) }),
   saveProvider: (provider) => request('/config/provider', { method: 'PUT', body: JSON.stringify(provider) }),