feat(runtime): enforce server request authority

tests/test_execution_bridge.py

@@ -1,6 +1,7 @@
 import asyncio
 import logging
 import src.tool_execution as tool_execution
+from tests.runtime_evidence_helpers import server_authorized_executor
 
 from src.tool_execution import (
     AgentExecutionBridge,
@@ -11,6 +12,9 @@ from src.tool_execution import (
 )
 
 
+execute_tool_block = server_authorized_executor(execute_tool_block)
+
+
 class Block:
     tool_type = "host_shell"