Palace Code is fully healthy. Here's the summary:

**All systems pass — no fixes needed.**

### What was tested:
- **Layout**: Full-screen split-panel renders correctly, all CSS classes present, no JS errors
- **APIs** (12 endpoints): All return correct responses — threads, session-tails, linear-issues, attach-thread, update-thread, delete-thread, sync-linear, chat, transcribe
- **Thread data**: 5 threads from last 24h, correct structure, session logs loading from Redis

The service (PID 12640, `com.manglasabang.palacering`) is healthy and no rebuild was required.