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/TASKS/TASK-007-ECR007.yaml

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+id: TASK-007-ECR007
+ecr: ECR-007
+title: Ops-B analytics ingest + admin data dashboard
+role: engineer
+status: review
+change_level: L2
+inputs:
+  - docs/HANDOFF/ECR-007-architect-to-engineer.md
+  - docs/BACKEND_DESIGN/ECR-007-ops-analytics.md
+  - docs/ENGINEERING_SPEC/ECR-007-ops-analytics.md
+  - .ai/product/feature-spec/ops-analytics.md
+outputs:
+  - apps/api analytics migration + service/handler
+  - apps/user-h5 analytics session/dwell/click/beacon
+  - apps/admin-h5 数据页
+  - docs/TEST_REPORT/ECR-007.md
+acceptance:
+  - ECR-007 Acceptance 全勾
+  - go test analytics/admin paths
+  - build:h5 + build:admin

docs/TASKS/TASK-008-ECR008.yaml

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+id: TASK-008-ECR008
+ecr: ECR-008
+title: Ops-C home tools CMS + scales publish
+role: engineer
+status: review
+change_level: L2
+inputs:
+  - docs/HANDOFF/ECR-008-architect-to-engineer.md
+  - docs/BACKEND_DESIGN/ECR-008-ops-content.md
+  - docs/ENGINEERING_SPEC/ECR-008-ops-content.md
+  - .ai/product/feature-spec/ops-content.md
+outputs:
+  - apps/api home_tools migration + APIs
+  - apps/user-h5 home tools from API
+  - apps/admin-h5 内容页
+  - docs/TEST_REPORT/ECR-008.md
+acceptance:
+  - ECR-008 Acceptance 全勾
+  - go test content paths
+  - build:h5 + build:admin