[CLAUDE] Docs: S113 closeout — Supplier import v2 SHIP prod (Run #497) + Mig 64/477 test/gotcha #80

- STATUS/HANDOFF: S113 mega-line + state (Mig 63->64, test 458->477, gotcha 79->80, prod 22->37 NCC, bundle acprMqfB/Ck3BTDdA Run #497)
- gotcha #80: ! null-forgiving tren external-parsed data -> NRE an (build 0/0 khong bat; chi test-before-critical bat)
- ef-core skill: Mig 64 row + pointer-flush (session-start H1 drift, kill recurring latest-Mig class)
- session log 2026-07-12-S113-supplier-import-v2.md

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.claude/skills/README.md

@@ -17,7 +17,7 @@ Skill này là tài liệu chuyên biệt để Claude (và developer khác) dù
 | Skill | Mục đích | Trigger ví dụ | Trạng thái |
 |---|---|---|---|
 | `dependency-audit-erp` | Scan CVE NuGet + npm 2 FE, respect pin constraint (MediatR 12.4.1, Swashbuckle 6.9.0) | "npm audit", "dotnet vulnerable", "deps scan", "nâng cấp package" | ✅ New Tier 3 |
-| `ef-core-migration` | Tạo/revert EF Core 10 migration, 3-file rule, DesignTimeDbContextFactory, migration history (mới nhất Mig 62; số → `docs/STATUS.md`) | "thêm migration", "EF migration", "schema update", "snapshot lỗi" | ✅ Updated S104 (Mig 62 ExpandSupplierFields Supplier 9→27 field; prev S98 Mig 60/61; số → `docs/STATUS.md`) |
+| `ef-core-migration` | Tạo/revert EF Core 10 migration, 3-file rule, DesignTimeDbContextFactory, migration history (mới nhất → row cuối bảng skill; số → `docs/STATUS.md`) | "thêm migration", "EF migration", "schema update", "snapshot lỗi" | ✅ Updated S113 (mig-ref → pointer anti-drift B1; Mig 63 AddSupplierImportSourceFields row added; số → `docs/STATUS.md`) |
 | `iis-deploy-runbook` | 3 IIS site + win-acme cert + gitea-runner + LibreOffice + debug 500/502/SignalR prod + **G-084 IPv4/IPv6 hardening** | "prod 500", "IIS fail", "cert hết hạn", "restart app pool", "deploy IIS", "port hijack" | ✅ Updated (G-084) |
 
 ## Format chuẩn 1 skill