docs(security): add mirror acceptance contract [skip ci]

docs/security/security-mirror-route.snapshot.json

@@ -11,7 +11,7 @@
     "docs/security/security-mirror-event-sample.snapshot.json"
   ],
   "summary": {
-    "total_contracts": 23,
+    "total_contracts": 24,
     "route_group_count": 5,
     "channel_event_policy": "初期只對階段完成、blocked 狀態或需要人工批准的高風險候選發低噪音事件；LOW / MEDIUM observation 不發阻擋事件。",
     "approval_queue_policy": "只有 approval-only、suggest-only 或 blocked-until-approved 項目可進 approval queue；approval queue 不代表可執行。"
@@ -25,7 +25,8 @@
         "security_rollout_policy_v1",
         "security_mirror_event_v1",
         "security_mirror_intake_plan_v1",
-        "security_mirror_route_v1"
+        "security_mirror_route_v1",
+        "security_mirror_acceptance_v1"
       ],
       "destinations": [
         "operator_console",
@@ -38,7 +39,8 @@
         "顯示 contract readiness 與 manifest",
         "顯示 mirror-only policy",
         "顯示每個 wave 的目的地與 blocked processing",
-        "要求所有鏡像 payload 使用 security_mirror_event_v1 信封"
+        "要求所有鏡像 payload 使用 security_mirror_event_v1 信封",
+        "顯示 security_mirror_acceptance_v1 驗收結果"
       ],
       "blocked_processing": [
         "新增執行按鈕",
@@ -46,7 +48,7 @@
         "runtime blocking",
         "自動批准任何 queue item"
       ],
-      "exit_gate": "AwoooP 可顯示 23 個 contract、5 個 route groups，且所有 route 都維持 runtime_execution_authorized=false。"
+      "exit_gate": "AwoooP 可顯示 24 個 contract、5 個 route groups、7 個 acceptance checks，且所有 route 都維持 runtime_execution_authorized=false。"
     },
     {
       "wave_id": "M1_kali_visibility",
@@ -183,7 +185,7 @@
   "acceptance_gates": [
     {
       "gate_id": "ROUTE_COVERS_ALL_CONTRACTS",
-      "requirement": "route_groups 合併後必須涵蓋 manifest 的 23 個 contracts。"
+      "requirement": "route_groups 合併後必須涵蓋 manifest 的 24 個 contracts。"
     },
     {
       "gate_id": "NO_EXECUTION_SURFACE",