fix(#2801): add ingest-docs handler to gsd-tools init dispatch (#2820)

* fix(#2801): add ingest-docs handler to gsd-tools init dispatch

The `/gsd-ingest-docs` workflow was broken because `workflows/ingest-docs.md`
called `gsd-sdk query init.ingest-docs` but the installed binary is `gsd-tools`,
and `gsd-tools init` had no `ingest-docs` case in its dispatch switch.

- Added `cmdInitIngestDocs` function to `init.cjs` and exported it; returns
  `project_exists`, `planning_exists`, `has_git`, `project_path`, `commit_docs`
- Added `case 'ingest-docs'` to the `init` switch in `gsd-tools.cjs`
- Updated `workflows/ingest-docs.md` to call `gsd-tools init ingest-docs`
  (line 55) and `gsd-tools commit` (line 292) instead of `gsd-sdk query ...`
- Regression test: `tests/bug-2801-ingest-docs-handler.test.cjs`

Closes #2801

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(#2801): address CodeRabbit — commit_docs assertion, broader gsd-sdk detection, bash fence

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

get-shit-done/workflows/ingest-docs.md

@@ -52,7 +52,7 @@ If `PATH_NOT_FOUND` or `MANIFEST_NOT_FOUND`: display error and exit.
 Run the init query:
 
 ```bash
-INIT=$(gsd-sdk query init.ingest-docs)
+INIT=$(gsd-tools init ingest-docs)
 ```
 
 Parse `project_exists`, `planning_exists`, `has_git`, `project_path` from INIT.
@@ -289,7 +289,7 @@ Preview the merge diff to the user and gate via approve-revise-abort before writ
 Commit the ingest results:
 
 ```bash
-gsd-sdk query commit "docs: ingest {N} docs from {SCAN_PATH} (#2387)" --files \
+gsd-tools commit "docs: ingest {N} docs from {SCAN_PATH} (#2387)" --files \
   .planning/PROJECT.md \
   .planning/REQUIREMENTS.md \
   .planning/ROADMAP.md \