Update tool types to include custom and library tools and add web_search tool

Add web_search tool and change tool definition

apps/rowboat/app/lib/project_templates.ts

@@ -56,7 +56,18 @@ You are an helpful customer support assistant
                 prompt: "Hello! How can I help you?"
             }
         ],
-        tools: [],
+        tools: [
+            {
+                "name": "web_search",
+                "description": "Fetch information from the web based on chat context",
+                "type": "library",
+                "parameters": {
+                    "type": "object",
+                    "properties": {},
+                },
+                "implementation": "default",
+            }
+        ],
     }
 }