fix(mcp): tag legacy provider calls with audit context

apps/api/src/services/post_execution_verifier.py

@@ -34,14 +34,14 @@ MASTER §3.1 L6×D1
 from __future__ import annotations
 
 import asyncio
-import time
 from typing import TYPE_CHECKING, Any
 
 import structlog
 
 from src.services.evidence_snapshot import EvidenceSnapshot
+from src.services.mcp_audit_context import with_mcp_audit_context
 from src.services.mcp_tool_registry import SensorDimension, get_mcp_tool_registry
-from src.services.sanitization_service import sanitize_dict_values
+from src.services.sanitization_service import sanitize, sanitize_dict_values
 # W2 PR-V1: 頂層 import 讓測試 patch 路徑固定（延遲 import 無法被 patch）
 # ENABLE_SELF_HEALING_VALIDATOR=False 時此 import 不影響效能（純 python 模組）
 from src.services import self_healing_validator as _shv_module
@@ -216,8 +216,15 @@ class PostExecutionVerifier:
 
         async def _call_one(reg) -> tuple[str, Any]:
             try:
+                audited_params = with_mcp_audit_context(
+                    params,
+                    session_id=f"incident:{_get_incident_id(incident)}:post_execution",
+                    incident_id=_get_incident_id(incident),
+                    flywheel_node="verify",
+                    agent_role="post_execution_verifier",
+                )
                 result = await asyncio.wait_for(
-                    reg.provider.execute(reg.tool.name, params),
+                    reg.provider.execute(reg.tool.name, audited_params),
                     timeout=TOOL_TIMEOUT_SEC,
                 )
                 if result.success and result.output: