feat(ECR-009): Ops-D order filters, plan display prices, refund status

LOOP-RUN-002 sample: admin order multi-filter, membership display
price catalog, read-only refund_status. No real payment or RBAC.

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

.gates/ECR-009-report.json

@@ -0,0 +1,42 @@
+{
+  "ecr": "ECR-009",
+  "result": "BLOCK",
+  "ess_version": "v1.0",
+  "gate_version": "0.1.2",
+  "project_profile": "unknown",
+  "checks": {
+    "artifact": false,
+    "role_boundary": true,
+    "backend_boundary": true,
+    "traceability": false,
+    "tests": true
+  },
+  "violations": [
+    {
+      "rule": "ART-BD-002",
+      "description": "BACKEND_DESIGN must be Status Approved before implementation",
+      "fix_required": [
+        "Set BD Status to Approved",
+        "Re-run ess-gate-check"
+      ],
+      "detail": "BD-2026-009-ops-commerce.md",
+      "check": "artifact-check"
+    },
+    {
+      "rule": "TR-COMMIT-001",
+      "description": "Trace chain requires implementation commit evidence",
+      "fix_required": [
+        "Record commit sha in TRACEABILITY or TEST_REPORT",
+        "Re-run gate"
+      ],
+      "detail": "ECR-009",
+      "check": "traceability-check"
+    }
+  ],
+  "errors": [
+    "[artifact-check] BLOCK [ART-BD-002]: BACKEND_DESIGN must be Status Approved before implementation \u2014 BD-2026-009-ops-commerce.md",
+    "[traceability-check] BLOCK [TR-COMMIT-001]: Trace chain requires implementation commit evidence \u2014 ECR-009"
+  ],
+  "warnings": [],
+  "timestamp": "2026-08-06T18:45:04Z"
+}