feat: add node-signed system body write admission

tcs-core/zhuyuan-brain/runtime/protocol-event-trigger-map.json

@@ -1,7 +1,7 @@
 {
   "schema": "guanghu.protocol-event-trigger-map/v1",
   "map_id": "BS-TCS-PROTOCOL-EVENT-TRIGGER-MAP-001",
-  "version": "2026-08-10.2",
+  "version": "2026-08-10.3",
   "rule": "TCS先形成事件语义信号，活系统主控再按信号唤醒协议器官；禁止按原文关键词扫描或把完整协议表塞入每轮模型上下文。",
   "baseline": [
     "GLS-0001",
@@ -58,6 +58,12 @@
       "GLS-0306",
       "GLS-0311"
     ],
+    "system_body_write_requested": [
+      "GLS-0254",
+      "GLS-0302",
+      "GLS-0305",
+      "GLS-0306"
+    ],
     "public_snapshot_or_navigation_changed": [
       "GLS-0254",
       "GLS-0110",
@@ -114,6 +120,8 @@
   },
   "somatic_validation_contract": {
     "body_map": "routing/bingshuo-system-body-organ-map.json",
+    "before_model_inference_on_write": "REGISTERED_NODE_SIGNED_PERSONA_ENVELOPE_REQUIRED",
+    "write_admission_gate": "BS-TCS-WRITE-ADMISSION-GATE-001",
     "before_execution": "WHOLE_BODY_COLLECTIVE_VALIDATION_REQUIRED",
     "rejection_feedback": ["stable_error_code", "failed_gate", "current_fact", "required_correction", "retry_entry"],
     "persona_brain_override": false