Release v0.1.1: fix collectstatic crash-loop; ship /api/skill

Fixes the deploy blocker found deploying v0.1.0 to cloud-vm-1: the vendored
gridjs.umd.js ended with a //# sourceMappingURL=gridjs.umd.js.map trailer,
but that .map isn't in the repo. The strict CompressedManifestStaticFilesStorage
backend follows the reference and raises MissingFileError, aborting the
entrypoint's collectstatic so the container never served. Stripped the
debug-only trailer (no runtime effect); collectstatic now succeeds from a
pristine checkout (169 copied, 481 post-processed).

Also rolls up this release's already-committed work: GET /api/skill and the
location-agnostic posting-skill rewrite.

- Bump __version__ to 0.1.1.
- Runbook: note that a post-build crash-loop is most likely a collectstatic
  MissingFileError (check docker logs), and how to clear on-server tracked
  drift before checking out a tag.
- CHANGELOG: 0.1.1 entry.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,16 @@ the git tags (`vX.Y.Z`) and `daybook_project.__version__`.
 
 ## [Unreleased]
 
+_Nothing yet._
+
+## [0.1.1] — 2026-09-03
+
+### Fixed
+- Deployment crash-loop: the vendored `gridjs.umd.js` referenced a
+  `gridjs.umd.js.map` sourcemap that isn't in the repo, so `collectstatic`
+  (strict manifest storage) failed on container start and v0.1.0 never came
+  up. Removed the dangling sourcemap trailer (debug-only, no runtime effect).
+
 ### Added
 - `GET /api/skill` serves the bundled agent-posting skill as Markdown (or
   `?format=json`), with `DAYBOOK_URL` pre-filled to the instance's own
@@ -53,5 +63,6 @@ First tagged release.
 - Dockerised (Gunicorn + whitenoise), SQLite, `git`-based deploy with a
   runbook (`deploy/cloud_agent_deploy.md`) and health check.
 
-[Unreleased]: https://git.cygnus.systems/peter/daybook/compare/v0.1.0...HEAD
+[Unreleased]: https://git.cygnus.systems/peter/daybook/compare/v0.1.1...HEAD
+[0.1.1]: https://git.cygnus.systems/peter/daybook/compare/v0.1.0...v0.1.1
 [0.1.0]: https://git.cygnus.systems/peter/daybook/releases/tag/v0.1.0