fix(hooks): sync after rebase and diagnose disabled git hooks

[SaulMoro]

Summary

 git pull
   merge  -> post-merge -> sync
-  rebase -> no sync
+  rebase -> post-rewrite(rebase) -> sync

 doctor
-  registered hook -> pass
+  registered + enabled hook -> pass
+  disabled hook/event -> actionable failure

Rebase reuses the existing capped inline pull and detached retry. Amend does not sync; pull preserves explicit disable settings.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature
• Breaking change
• Documentation only
• Refactor / internal cleanup

Evidence

• Before: the built-CLI divergent-rebase regression exited 0 but failed with a missing delivered rule. A named hook set to enabled=false still returned installed: true.
  After: real Git/CLI checks deliver resources before merge and rebase return, deliver only after conflict resolution, ignore amend, and diagnose disabled hooks. Reactivation restores new-worktree delivery; pull keeps enabled=false.

Test Plan

• npx tsc --noEmit
• npm run lint
• npx vitest run: 8,023 passed, 20 skipped; 387 test files passed, 1 skipped.
• Added/updated public-interface regressions, including global/local disable settings and legacy hook-script ownership/removal.
• npm run build
• Real CLI: npx vitest run --config vitest.e2e.config.ts src/__tests__/e2e/git-hook-new-worktree.test.ts --retry 0: 32 passed with Git 2.55, local Git remotes and isolated HOME. Covers merge/rebase, configured rebase, conflict continuation, amend, disabled diagnostics/reactivation, lock failure records and uninstall. Detached children are joined before cleanup.
• After the documentation/constant-name follow-up: 113 handler tests, typecheck/lint/build and six focused real-CLI rebase/doctor cases passed again at 9cdd4f28.
• git diff --check

Extra providers and agent coverage are left to CI; one representative real-CLI run is sufficient. English/Chinese usage guides and affected skill-data are synchronized.

Related Issues

No linked issue.

Merge Danger

Door: two-way

Revert the code. For projects that already pulled this version, also remove hook.teamai-post-rewrite from local Git config; on older Git remove only its TeamAI-marked block from .git/hooks/post-rewrite. Preserve the owner's script. Normal uninstall removes the new hook too.

Blast Radius: hooks

Project Git synchronization and its doctor check. Named disable settings require Git 2.54+; event disable settings require Git 2.55+. Existing hook managers and explicit disable settings are preserved.

Notes for Reviewers

The new event uses existing install/remove loops and the same synchronization handler. Review the rebase-only guard, effective activation check and preservation of other hooks.