refactor(tools): Migrate shell tool name to a centralized constant (#11418)

packages/cli/src/config/policy.ts

@@ -19,7 +19,7 @@ import {
   // Write tools
   EditTool,
   MemoryTool,
-  ShellTool,
+  SHELL_TOOL_NAME,
   WRITE_FILE_TOOL_NAME,
   WEB_FETCH_TOOL_NAME,
   WebSearchTool,
@@ -47,7 +47,7 @@ const READ_ONLY_TOOLS = new Set([
 const WRITE_TOOLS = new Set([
   EditTool.Name,
   MemoryTool.Name,
-  ShellTool.Name,
+  SHELL_TOOL_NAME,
   WRITE_FILE_TOOL_NAME,
   WEB_FETCH_TOOL_NAME,
 ]);