feat(ECR-046): ScaleDefinition 元数据写面闭环并 Closed

explore.write POST/PUT · create→draft · status 仍 ECR-008 · migration 000055 · Loop STOP

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

docs/CONTRACT_DIFF/ECR-046.yaml

@@ -0,0 +1,20 @@
+ecr: ECR-046
+capability: ExploreConfig
+change:
+  type: additive
+breaking_change: false
+migration_required: true
+apis:
+  - method: POST
+    path: /api/v1/admin/explore/scales
+    change: added
+  - method: PUT
+    path: /api/v1/admin/explore/scales/{id}
+    change: added
+perms:
+  - code: admin.explore.write
+    change: reused
+  - code: admin.content.write
+    change: unchanged_status_channel
+migration: 000055_ops_scale_definition_write
+notes: status publish remains PATCH /admin/scales/{id} (ECR-008)