Palace Code self-heal audit complete — **all clear**.

**What was tested:**
- HTTP 200 on the main page with correct layout (title, split-panel, time selector, new chat button)
- All API endpoints: `threads`, `session-tails`, `linear-issues`, `attach-thread`, `sync-linear`, `update-thread`, `delete-thread`
- Full thread lifecycle via Redis (insert → retrieve → delete)

**No issues found.** Chrome MCP wasn't available in the agent environment, so testing was done via curl + source review — same methodology as the second self-heal pass from March 20. Everything passes.