chore(ai-workflow): tighten agent workflow and worktree tooling (#1107)

* chore(ai-workflow): tighten agent workflow and worktree tooling

* fix(ai-workflow): address review feedback

* fix(ai-workflow): make format hook portable

docs/agent-playbooks/templates/progress.template.md

@@ -0,0 +1,12 @@
+# Progress Log
+
+Append one entry per session.
+
+## YYYY-MM-DD HH:MM
+
+- Item: F001
+- Summary: Replace this with the session summary.
+- Files: `path/to/file`
+- Verification: `yarn build`, `yarn lint`, `yarn type-check`
+- Blockers: none
+- Next: Replace this with the next best follow-up.