docs: record verified teacher introduction main merge

.project-docs/30-worklog/tasks/20260929-teacher-intro-merge-e8f30c62.md

@@ -8,7 +8,7 @@
 - Worktree: /Users/chillishark/Makelore 麦洛/.codex-worktrees/makelore/20260929-teacher-intro-merge-e8f30c62
 - Base commit: 1c07f7b5cb58e383e64994669a9e1d36732cb09e
 - Owner: codex
-- Status: Planning
+- Status: Ready for Integration
 
 ## Scope
 
@@ -20,7 +20,7 @@
 
 ## Outcome
 
-- Combined source 7458c37 with latest fetched remote 1c07f7b. All group visibility/dismissal, legacy compatibility and three-turn behavior retained; remote reasoning/body streaming untouched.
+- Merged source 7458c37 with latest fetched remote 1c07f7b and fast-forwarded local main to f853396. All group visibility/dismissal, legacy compatibility and three-turn behavior retained; remote reasoning/body streaming untouched.
 - Resolved the single Electron-spec conflict by retaining the stricter remote 8–9px native preview gap assertion. Retained new group lifecycle tests and remote streaming test. No product-code conflict.
 
 ## Verification
@@ -31,7 +31,7 @@
 
 ## Follow-ups
 
-- Fast-forward validated candidate into the clean local main checkout; remote push is outside this request.
+- Local main successfully fast-forwarded from a77ddbd to merge f853396; source 7458c37 and latest fetched remote 1c07f7b verified as ancestors. No remote push performed. Optional retirement of only this merge checkout remains separate from the completed merge.
 
 ## Promotion Candidates