## Perception Engine Build (22:20–22:50 EST)

### What Was Built
- **Swarm Orchestrator** (`tools/youtube-understand/swarm.py`) — 37KB
  - SwarmOrchestrator class with parallel worker management
  - Vision workers: batch frames → qwen3.5:4b analysis
  - Audio workers: whisper transcription of audio chunks
  - Transcript workers: 0.8b key-point extraction
  - Synthesis coordinator: merges all streams into unified understanding
  - Real-time event system for WebSocket streaming
  - WorkerStatus tracking: state, progress, current text, timing
  - Pipeline stages: prepare → extract → distribute → perceive → merge → synthesize

- **Updated Server** (`tools/youtube-understand/server.py`) — 20KB
  - Added flask-socketio for WebSocket real-time streaming
  - New /api/swarm/* endpoints (analyze, jobs, models, understanding, summary)
  - WebSocket rooms per job for targeted broadcasts
  - Backward-compatible legacy API preserved
  - Upload endpoint now uses swarm pipeline

- **Perception Engine Dashboard** (`hub/29-youtube-understand/index.html`) — 29KB
  - Live worker cards: see each agent working in real-time
  - Color-coded by sense: 👁️ vision (red), 👂 audio (teal), 📝 transcript (yellow), 🧠 synthesis (purple)
  - Pipeline progress bar across all stages
  - Worker state animations (idle → working → done)
  - Live output streaming in each card
  - Results tabs: Summary, Full Understanding, Vision, Audio
  - Activity log stream (collapsible)
  - Job history sidebar
  - Dark theme, mobile responsive

### Dependencies Installed
- flask-socketio 5.6.1
- simple-websocket 1.1.0
- python-socketio 5.16.1

### Service Status
- Port 8099 running (Perception Engine v2.0.0)
- Health check: OK
- 20 models available
- WebSocket transport: active
- Hub page 29 updated