feat(ECR-042): OpsCMS FeedSlot 薄写面

Admin POST/PUT 复用 admin.cms.write；C 端 GET /home/feed-slots；首页无 active 槽隐藏推荐区、失败回退展示；无新 migration。

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/ECR/ECR-041-banner-write.md

@@ -44,11 +44,4 @@ Spec `ops-banner-write` · BD-2026-041 · PRODUCT_SPEC/ECR-041 · CONTRACT_DIFF
 
 ## Coding gate
 
-```text
-repo-governance-check PASS
-→ ess-validate design/implement as required
-→ BD Approved
-→ THEN Continuous Loop may start coding
-```
-
-本文件交付时 **禁止改 `apps/` / `packages/`**。  
+Closed via Write-Wave Continuous Loop · Evidence: `docs/TEST_REPORT/ECR-041.md` · `docs/CODE_REVIEW/ECR-041.md`  

docs/ECR/ECR-042-feed-slot-write.md

@@ -0,0 +1,21 @@
+# ECR-042
+
+**Title:** OpsCMS · FeedSlot 薄写面  
+**Status:** **Closed**（2026-08-13 · Write-Wave Continuous Loop）  
+**Change Level:** L2  
+**Write-Wave:** Active · Predecessor ECR-041 Closed  
+
+## Change
+
+1. Spec `ops-feed-slot-write`  
+2. Admin POST/PUT feed-slots + audit（复用 `admin.cms.write`）  
+3. C 端 GET `/home/feed-slots`；首页推荐区按 home 槽 active 显隐  
+4. admin-h5 FeedSlot 编辑（Banner 写面不回退）  
+
+## Forbidden
+
+Banner+FeedSlot 合并扩 scope · soft-delete · UGC · 真支付 · ScheduledPublication 写 · 新权限模型  
+
+## Trace
+
+BD-2026-042 · CONTRACT_DIFF · TEST_REPORT · WRITE_WAVE_AUTHORIZATION