[Panel service] (Node/Express at https://panel.freshvibeapps.com)
  ├─ /api/mavis/* (HQ endpoints, token-auth)
  │   ├─ /api/mavis/register      → create thread, return token
  │   ├─ /api/mavis/me            → check token validity
  │   ├─ /api/mavis/heartbeat     → mark "alive at T, doing X"
  │   ├─ /api/mavis/bulletin      → post a status event (info/warn/error/success)
  │   ├─ /api/mavis/report        → end-of-session summary (files_touched, decisions)
  │   ├─ /api/mavis/prompt        → post a question to a thread's inbox
  │   ├─ /api/mavis/prompts       → list prompts (optionally filtered by thread_id)
  │   ├─ /api/mavis/inbox         → cross-thread feed (all prompts + bulletins, excluding own thread)
  │   ├─ /api/mavis/threads       → list all threads with last_heartbeat_at + status
  │   ├─ /api/mavis/import        → bulk import past_state items
  │   └─ /api/artifacts*          → upload/download artifacts (HTML plans, mockups, docs)
  │
  ├─ DB: SQLite at /opt/operator/panel/data/panel.db
  │   ├─ hq_threads     (id, name, token, session_id, last_heartbeat_at, status, trust_score, created_at, renamed_at)
  │   ├─ hq_bulletins   (id, thread_id, ts, level, message)
  │   ├─ hq_prompts     (id, thread_id, ts, prompt, status)
  │   ├─ hq_reports     (id, thread_id, ts, summary, files_touched, decisions)
  │   └─ artifacts      (id, thread_id, name, type, path, url, title, description, tags, project, ...)
  │
  └─ /opt/operator/panel/mavis_hq_client.py   (Python client lib, used by all Mavis threads)

Operator prompt
  ↓ (vibecoder.freshvibeapps.com chat, sent to LLM)
  ↓
LLM parses intent → "blog about Wales"
  ↓
Chat tool: GET /api/agent/cms-widgets/resolve?intent=blog
  ↓
FES endpoint scans gallery, returns:
  { content_types: [BlogPost],
    widgets: [blog-post-card, blog-post-list],
    tools: [color-picker, image-selector] }
  ↓
LLM picks what to use, calls build_freshvibe_app
  ↓
VibeCoder vendors the files FES identified
  ↓
Generated app boots freshvibe-cms runtime + mounts widgets

cms-widgets/
├── <widget-name>/             # 16 widgets, each a self-contained dir
│   ├── module.json            # id, name, schema, tier, template, icon
│   ├── module-meta.json       # provenance, evolution, tags
│   ├── src/widget.js          # ACTUAL CODE (lives here, not in freshvibe-cms)
│   ├── src/editor.js          # editor-side code (optional)
│   └── recipe-book/           # human docs (recipe.md, codex.md, rules.md)
├── tools/                      # 5 tool atoms (color-picker, image-selector, etc.)
└── theme-presets/              # 5 presets (coral-sunset, forest-mist, mono, neon-studio, linen)