fix(xcode-ide): Normalize standalone list-tools payload shape

Serialize bridge tools through an explicit allowlist in standalone mode
to match manager output and avoid leaking new enumerable SDK fields
if the Tool type changes.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: cameroncooke

src/integrations/xcode-tools-bridge/standalone.ts

@@ -3,6 +3,7 @@ import {
   createTextResponse,
   type ToolResponse,
 } from '../../utils/responses/index.ts';
+import type { Tool } from '@modelcontextprotocol/sdk/types.js';
 import {
   buildXcodeToolsBridgeStatus,
   classifyBridgeError,
@@ -74,7 +75,7 @@ export class StandaloneXcodeToolsBridge {
         JSON.stringify(
           {
             toolCount: tools.length,
-            tools,
+            tools: tools.map((tool) => this.serializeTool(tool)),
           },
           null,
           2,
@@ -101,4 +102,15 @@ export class StandaloneXcodeToolsBridge {
       return createErrorResponse(classifyBridgeError(error, 'call'), message);
     }
   }
+
+  private serializeTool(tool: Tool): Record<string, unknown> {
+    return {
+      name: tool.name,
+      title: tool.title,
+      description: tool.description,
+      inputSchema: tool.inputSchema,
+      outputSchema: tool.outputSchema,
+      annotations: tool.annotations,
+    };
+  }
 }