[CLAUDE] Docs: resolve S40 carry-over — BROADCAST-2 feedback + gitignore local .mcp.json

- BROADCAST-OUT-...-05-29.md: commit parallel-session "BROADCAST 2 — Infra Feedback"
  addition (MCP fragility / rag.json slug / search_code corpus gap / re-index ask;
  RAG chunk fe64e725). Legit governance trail; AI_INFRA 06-01 bundle partly responds to it.
- .mcp.json: gitignore (rag-unified stdio, machine-specific absolute paths, no secrets,
  reconstructable local env glue — not shared).

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

docs/governance/BROADCAST-OUT-SOLUTION-ERP-2026-05-29.md

@@ -35,4 +35,23 @@
 
 ---
 
-*Commit trail S40: `d2f52ba..894eb68` (8 commit, all docs/infra → CI skip per gotcha #41). Maintainer: SOLUTION_ERP em main. RAG `store_memory` broadcast ✅ DONE (chunk `1b7a28fc`) sau MCP recover 2026-05-29.*
+## 📤 BROADCAST 2 — Infra Feedback + Proposals (post-recovery retrospective)
+
+> RAG chunk `fe64e725` (cross-project discoverable). Theo charter v2: SE = NGƯỜI DÙNG hạ tầng, góp ý để infra tốt hơn.
+
+**🔴 Pain points (cost product time S40):**
+1. **MCP fragility** — 1 máy full ổ C → 6 project mất MCP; rớt không có tín hiệu → SE tốn ~5 lượt tự chẩn đoán. → Ưu tiên **web-hosted MCP** + **broadcast outage PROACTIVE**.
+2. **rag.json extra_corpus slug sai 10 session** → 27 memory entries âm thầm không index. → **bootstrap.py validate path tồn tại** lúc setup.
+3. **auto_reindex=replace SET nhưng last_indexed kẹt 2026-05-28** → S38-S40 không pick up. → kiểm tra auto_reindex có fire không.
+
+**🟡 Product-needs:**
+4. **`search_code` vô dụng cho SE** — corpus_paths chỉ .md, không có src/*.cs + fe/*.tsx; mà agent guidance khuyên "prefer search_code". → add src+fe vào corpus HOẶC bỏ guidance.
+5. **Re-index SE (ask #1)** — path fix + S38-S40 + consolidated docs.
+
+**🟢 FYI:** projects.json file stale vs live · QUICKSTART sister-state stale (SE đã v1.3 S30-S31).
+
+**Cam kết:** SE không đụng cơ chế (server.py/chunk_size/eval/python). Focus product từ giờ.
+
+---
+
+*Commit trail S40: `d2f52ba..` 10 commit, all docs/infra → CI skip per gotcha #41. Maintainer: SOLUTION_ERP em main. RAG `store_memory`: adoption chunk `1b7a28fc` + feedback chunk `fe64e725` ✅ (sau MCP recover 2026-05-29).*