test(mcp): restore presentation subprocess deadline

tests/boundary/mcp/contractPresentation.test.ts

@@ -41,9 +41,7 @@ it(
         REA_MCP_INPUT_SCHEMA_PROFILE: "full",
         REA_MCP_OUTPUT_SCHEMA_PROFILE: "full",
       },
-      // The child advertises the full catalog and calls every browser, Electron,
-      // and JavaScript example. A busy runner exceeded 20s and was killed.
-      timeout: 60_000,
+      timeout: 20_000,
       signal: cancellation.signal,
       maxBuffer: 16 * 1024 * 1024,
     });