chore: bump version and changelog (v1.12.1.0)

Also updates test/gstack-brain-init-gh-mock.test.ts to match the fixed
behavior of bin/gstack-brain-init (the assertion previously required
`--source`, which was the bug being fixed in 04185d8f).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## [1.12.1.0] - 2026-04-24
+
+## **`/setup-gbrain` day-two fixes: three shell bugs in the onboarding path, one MCP scope mistake.**
+
+v1.12.0.0 shipped /setup-gbrain yesterday. Running it end-to-end for the first time surfaced four real defects that blocked the happy path. This is the day-two patch — tiny diff, all blockers, no new scope.
+
+### Itemized changes
+
+#### Fixed
+- `bin/gstack-gbrain-install`: D19 PATH-shadow check was string-comparing `"gbrain 0.18.2"` (with prefix) against `"0.18.2"`, so every install exited 3 with a false-positive PATH-shadowing error. Parse with `awk '{print $NF}'` to extract just the version number.
+- `bin/gstack-brain-init`: `gh repo create --source $GSTACK_HOME` ran before `git init`, failing with "not a git repository" on every first-run path. The script's later steps wire up the remote explicitly, so `--source` is redundant and can be omitted.
+- `setup-gbrain/SKILL.md.tmpl` Step 9: smoke test used `gbrain put_page --title ... --tags ...`, which doesn't exist. The real command is `gbrain put <slug>` with body piped on stdin.
+- `setup-gbrain/SKILL.md.tmpl` Step 5a: MCP registered with default scope `local` (per-workspace), defeating the whole point of a cross-session knowledge base. Now uses `--scope user` with absolute path to the gbrain binary (so PATH resolution at subprocess spawn isn't a gamble).
+
+#### Changed
+- `test/gstack-brain-init-gh-mock.test.ts`: updated assertion to match the fixed behavior (`expect(createCall).not.toContain('--source')`).
+
 ## [1.12.0.0] - 2026-04-24
 
 ## **`/setup-gbrain` — any coding agent goes from zero to "gbrain is running, and I can call it" in under five minutes.**

VERSION

@@ -1 +1 @@
-1.12.0.0
+1.12.1.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gstack",
-  "version": "1.12.0.0",
+  "version": "1.12.1.0",
   "description": "Garry's Stack — Claude Code skills + fast headless browser. One repo, one install, entire AI engineering workflow.",
   "license": "MIT",
   "type": "module",

test/gstack-brain-init-gh-mock.test.ts

@@ -134,8 +134,10 @@ describe('gstack-brain-init uses gh CLI when present + authed', () => {
     expect(createCall).toContain('gstack-brain-testuser');
     expect(createCall).toContain('--private');
     expect(createCall).toContain('--description');
-    expect(createCall).toContain('--source');
+    // --source is intentionally omitted: gh requires the source dir to already
-    expect(createCall).toContain(tmpHome);
+    // be a git repo, but brain-init doesn't `git init $GSTACK_HOME` until later.
+    // Creating bare and wiring up the remote explicitly avoids that ordering bug.
+    expect(createCall).not.toContain('--source');
   });
 
   test('falls back to gh repo view when create reports already-exists', () => {