[CLAUDE] Docs: S53 closeout — gotcha #57 EXT Master (Mig 47) + P11-D/E + database-agent verified-runtime + doc-drift

Session 53 closeout (HMW-mode ON, 'làm hết' full close). Code already shipped in 44b9e54 (Mig 47, Run #260) + dbf6648 (C+D, Run #261), both prod-verified.

- STATUS/HANDOFF: S53 entry (mig 46->47, test 200->203, menu +Off_AttendanceReport, bundle admin DfCfHUE9, database-agent verified-runtime).
- Doc-drift E (H1 top-5): ef-core skill 43->47, agents/README roster 10->11 + plugin nac, CLAUDE.md root 45->47 mig + 186->203 test, docs/CLAUDE.md 56->57 gotcha + 91->92 ERD.
- adap-report: database-agent executed-file -> verified-runtime (spawn-test caught Mig 46-unapplied-local).
- session log 2026-06-08-S53 + 4 agent diaries (S53 work).
- Memory: +project_database_agent_verified_local_drift (user-memory, outside repo).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.claude/skills/ef-core-migration/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: ef-core-migration
-description: Tạo/sửa/revert EF Core 10 migration cho SOLUTION_ERP. Dùng khi thêm entity mới, thay đổi schema, rollback migration, debug DesignTimeDbContextFactory fail. Đã có 43 migration sẵn (Init → FilterHolidayUniqueIndexByIsDeleted Mig 43, S45). Snapshot + Designer + Migration 3-file rule bắt buộc commit đủ.
+description: Tạo/sửa/revert EF Core 10 migration cho SOLUTION_ERP. Dùng khi thêm entity mới, thay đổi schema, rollback migration, debug DesignTimeDbContextFactory fail. Đã có 47 migration sẵn (Init → FilterMasterCatalogUniqueIndexesByIsDeleted Mig 47, S53). Snapshot + Designer + Migration 3-file rule bắt buộc commit đủ.
 when-to-use:
   - "thêm migration"
   - "EF Core migration"
@@ -16,7 +16,7 @@ when-to-use:
 
 > **Context:** .NET 10 + EF Core 10 + SQL Server. DbContext: `ApplicationDbContext` ở `Infrastructure/Persistence/`. Startup: `SolutionErp.Api`.
 
-## Migration history (43 migration hiện có)
+## Migration history (47 migration hiện có)
 
 | # | Name | Tables added / changed |
 |---|---|---|