v1.26.1.0 fix: gbrain-sync orchestrator resolves sibling via import.meta.dir (#1312)

* fix: gbrain-sync orchestrator resolves brain-sync sibling via import.meta.dir

Codex M9: runBrainSyncPush hardcoded ~/.claude/skills/gstack/bin/gstack-brain-sync,
so any host that wasn't Claude Code (Codex CLI, dev workspace) hit the existsSync
guard and silently skipped curated-artifact push. Replace with the sibling-resolution
pattern already in runMemoryIngest at line 193.

Regression test asserts the orchestrator no longer takes the lying-skip path when
HOME has no ~/.claude/skills/gstack tree.

* chore: bump plan-review preamble ratchet + regenerate ship goldens

The 33 KB preamble byte budget hadn't been bumped through v1.25.1.0
(AskUserQuestion recommendation pattern) and v1.26.0.0 (gbrain sync block).
plan-ceo-review SKILL.md sat at 33,018 bytes — 18 over the ratchet. Comment
in the test already authorizes this kind of intentional-growth bump.
Lifted to 34 KB which gives ~700 B of headroom for the next preamble change.

claude-ship-SKILL.md and factory-ship-SKILL.md golden fixtures regenerated
against the live /ship template — v1.25.1.0 added the canonical
"Recommendation: <action> because ..." line to the adversarial subagent
prompts but the goldens were never re-baked.

* chore: bump version and changelog (v1.26.1.0)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

bin/gstack-gbrain-sync.ts

@@ -219,7 +219,7 @@ function runBrainSyncPush(args: CliArgs): StageResult {
     return { name: "brain-sync", ran: false, ok: true, duration_ms: 0, summary: "would: gstack-brain-sync --discover-new --once" };
   }
 
-  const brainSyncPath = join(HOME, ".claude", "skills", "gstack", "bin", "gstack-brain-sync");
+  const brainSyncPath = join(import.meta.dir, "gstack-brain-sync");
   if (!existsSync(brainSyncPath)) {
     return { name: "brain-sync", ran: false, ok: true, duration_ms: 0, summary: "skipped (gstack-brain-sync not installed)" };
   }