[CLAUDE] Skill: S27 audit late drift fix include batch (mig 26→31, gotcha 44→49)

3 file skill modified bởi S27 audit late (drift trigger +8 gotcha vượt §9.4
threshold) — committed log `docs/changelog/skill-audit-2026-05-late.md` đã ghi
chi tiết 5 patches, NHƯNG 3 file SKILL.md tự thân chưa được include trong
commit batch S29 wrap `e199603` (em main quên git add `.claude/skills/`).

Changes confirm S27 audit late patches:
- .claude/skills/README.md: ef-core-migration cell `26 mig → 31 mig` + Session
  marker `S19 → S23 t1 (Mig 31 F2 per-Approver-slot)` + docs/gotchas count
  `44 → 49 bẫy`
- .claude/skills/dependency-audit-erp/SKILL.md: gotcha count `41 → 49 bẫy`
- .claude/skills/ef-core-migration/SKILL.md: description `26 mig → 31 mig` +
  heading `26 → 31 migration hiện có` + Tests note `77 → 111 test pass` +
  DbSet cho 59 bảng note `26 → 31 mig`

Verify:
- git diff 3 file content already match docs/changelog/skill-audit-2026-05-late.md
  spec → S27 patches confirmed apply
- KHÔNG drift NEW post S29 — chỉ catch-up include batch missing

CI skip per paths-ignore (.claude/skills/** match docs-only pattern).

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

.claude/skills/dependency-audit-erp/SKILL.md

@@ -150,6 +150,6 @@ Lưu vào `docs/changelog/deps-audit-{YYYY-MM-DD}.md` nếu có action.
 
 ## Related
 
-- `docs/gotchas.md` — 41 bẫy package compat / CI / IIS / Identity đã gặp
+- `docs/gotchas.md` — 49 bẫy package compat / CI / IIS / Identity / per-NV refactor / SQLite tie-break đã gặp
 - `docs/changelog/migration-todos.md` Phase 5.1 — checklist deps scan CI
 - `SolutionErp.slnx` + `global.json` — .NET version pin