feat(ECR-022): CrisisCare CrisisPolicy 只读并 Closed

新增 crisis_policies、admin.crisis.read、列表/试匹配 API 与 admin-h5「危机」页；禁 CrisisEvent 写/UGC/真支付。

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

docs/CONTRACT_DIFF/ECR-022.yaml

@@ -0,0 +1,26 @@
+ecr: ECR-022
+capability: CrisisCare
+bounded_context: Content_Safety
+parent: WAVE0-FROZEN
+predecessor: ECR-021
+change:
+  type: additive
+breaking_change: false
+migration_required: true
+compatibility_notes: >
+  Adds crisis_policies catalog with system seeds and read/evaluate admin APIs.
+  Does not write CrisisEvent.
+
+apis:
+  - method: GET
+    path: /api/v1/admin/crisis/policies
+    change: added
+  - method: GET
+    path: /api/v1/admin/crisis/policies/{id}
+    change: added
+  - method: POST
+    path: /api/v1/admin/crisis/evaluate
+    change: added
+perms:
+  - code: admin.crisis.read
+    change: added