feat(ECR-048): ReportTemplate 写面闭环并 Closed

growth.write POST/PUT · migration 000057 · 无新 C 端 · Loop STOP

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

docs/CONTRACT_DIFF/ECR-048.yaml

@@ -0,0 +1,18 @@
+ecr: ECR-048
+capability: GrowthInsights
+change:
+  type: additive
+breaking_change: false
+migration_required: true
+apis:
+  - method: POST
+    path: /api/v1/admin/growth/report-templates
+    change: added
+  - method: PUT
+    path: /api/v1/admin/growth/report-templates/{id}
+    change: added
+perms:
+  - code: admin.growth.write
+    change: reused
+migration: 000057_ops_report_template_write
+notes: no C-end route; Funnel out of scope