feat(dashboard): cross-profile sessions, profile-aware status, and offline platform display

[02356abc]

Summary

This PR adds cross-profile support to the Hermes dashboard, allowing users to view sessions and gateway status across all profiles from a single UI.

Changes

1. Gateway status aggregation (gateway/status.py, hermes_cli/profiles.py)

   • read_runtime_status() now accepts optional status_path to read other profiles' runtime state
   • ProfileInfo gains gateway_state, gateway_platforms, gateway_updated_at fields
   • Connected Platforms now shows platforms from all profiles with correct online/offline state

2. Backend API enhancements (hermes_cli/web_server.py)

   • GET /api/status?profile= — returns profile-specific or aggregate gateway status
   • GET /api/sessions?profile= — lists sessions from specific profile or all profiles
   • GET /api/sessions/search?profile= — searches within specific profile or all profiles
   • Aggregate mode sorts cross-profile sessions by started_at descending
   • Profile metadata (profile, profile_name, hermes_home, is_default_profile) added to each session
   • Backward compatible: omitting profile parameter uses current profile (existing behavior)

3. Frontend updates (web/src/lib/api.ts, web/src/pages/SessionsPage.tsx)

   • Profile dropdown selector on Sessions page
   • Profile badges displayed on session rows
   • API client passes profile parameter to backend

Testing

• End-to-end tested with 3 profiles (default, matrix-agent, wecom-agent)
• Verified aggregate sessions (1081 total = 1027 + 0 + 54)
• Verified profile-specific filtering with no cross-profile leakage
• Verified pagination consistency across page sizes
• Verified search works across profiles and within single profile
• Verified offline platforms display with "offline" state instead of being hidden
• Backward compatibility confirmed (omitting profile uses current profile)

Notes

• Session counts use session_count() (includes child sessions) to match existing dashboard behavior
• list_sessions_rich() (excludes child sessions) is used for the actual session list
• Aggregate mode fetches up to 10,000 sessions per profile before sorting and paginating in-memory

Co-Authored-By: 02356abc 198679067+02356abc@users.noreply.github.com

[alt-glitch]

Competing with PR #9496 which also adds profile-aware sessions to the dashboard. Related issues: #10674 (design proposal), #21642 (profile-scoped config). Please coordinate.

[02356abc]

Closing to fix missing time filter implementation. Will reopen when complete.