feat(ops): ECR-007 行为分析与 ECR-008 内容运营后台

落地埋点 ingest/数据看板、首页宫格 CMS 与测评上下架；含账号引导、问答流式与免责声明去重，以及 review P1 审计同事务修复。

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

docs/HANDOFF/ECR-007-architect-to-engineer.md

@@ -0,0 +1,36 @@
+# HANDOFF — ECR-007 Architect → Engineer
+
+## Gate
+
+**仅当** `docs/ECR/ECR-007-ops-analytics.md` Status = **Approved**，且 `BACKEND_DESIGN` Status = **Approved** 后，方可改 `apps/` / `packages/`。
+
+当前：二者均为 **Approved**（2026-08-07 Human）→ Engineer 可改 `apps/`。
+
+## Consume
+
+1. `.ai/product/feature-spec/ops-analytics.md`  
+2. `docs/ECR/ECR-007-ops-analytics.md`  
+3. `docs/PRODUCT_SPEC/ECR-007-ops-analytics.md`  
+4. `docs/BACKEND_DESIGN/ECR-007-ops-analytics.md`（**BD-2026-007**）  
+5. `docs/ENGINEERING_SPEC/ECR-007-ops-analytics.md`  
+6. `$ESS_ROOT/technology-governance/BACKEND_STANDARD.md`  
+7. 本仓：`docs/PROJECT_RULES.md` · `.ai/architecture.md`
+
+## Do
+
+按 ENGINEERING_SPEC Implement order 落地 Ops-B。
+
+## Do not
+
+- 实现 Ops-C/D/E（另开 ECR）  
+- Handler → DB  
+- 采集 PII  
+- 引入 Kafka/ClickHouse（需 L3 + ADR）  
+
+## Return
+
+1. `docs/HANDOFF/ECR-007-engineer-to-reviewer.md`  
+2. `docs/TEST_REPORT/ECR-007.md`  
+3. `docs/CODE_REVIEW/ECR-007.md`  
+4. 更新 `docs/STATE/ECR-007.md` owner → reviewer  
+5. `python scripts/ess-validate.py --phase review --ecr ECR-007`