Extension 0.6.0: next-edit, token healing, TS errors context, cursor-move, prewarm

- shared/nextedit.ts: next-edit prompt format (region rewrite or NO_EDIT, Qwen spare special tokens)
- shared/diagnostics.ts: TS errors near the cursor as context; symbols format 2 adds namespace imports
- shared/prompt.ts: token healing (cut the half-typed word, force it via grammar), errors header section
- daemon: model profiles carry contextFormat/errors/members/nextEdit; /v1/next-edit with edit-burst
  tracking; /v1/prewarm; /v1/debug/last; token healing on by default
- extension: next-edit decorations (Tab apply / Esc dismiss), suggest on cursor move, prewarm on focus,
  Show Last Prompt, update check against releases, diagnostics in the edit recorder
- models/README: training-data attribution; release script profiles for stage-d/stage-e
- .gitea/workflows/ci.yml: build + test, publish release on vscode-v* tags (needs a runner + RELEASE_TOKEN)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J39imRDT8L7xYbWzsVWd8A

docs/architecture.md

@@ -1,6 +1,6 @@
 # Editor integration design (VS Code + Zed)
 
-Status (2026-10-03): the daemon, VS Code extension (incl. managed mode), symbols mode, `this.` repair and the edit recorder are implemented. See the [README](../README.md). Not yet built: token healing, the Zed shim, next-edit prediction.
+Status (2026-10-03): the daemon, VS Code extension (incl. managed mode), symbols mode (format 1 and 2), TS errors context, `this.` repair, token healing, next-edit plumbing (`/v1/next-edit`, decorations UI, shared prompt format in `shared/nextedit.ts`), pre-warming, the debug log and the edit recorder are implemented. See the [README](../README.md). Not yet built: the Zed shim, parallel "as if accepted" completions, recent-edits-in-other-files context.
 
 ## Goals