move mcp to ai mod

lib/ai/mcp/model_error.v

@@ -0,0 +1,35 @@
+module mcp
+
+import freeflowuniverse.herolib.schemas.jsonrpc
+
+// resource_not_found indicates that the requested resource doesn't exist.
+// This error is returned when the resource specified in the request is not found.
+// Error code: -32002
+pub fn resource_not_found(uri string) jsonrpc.RPCError {
+	return jsonrpc.RPCError{
+		code:    -32002
+		message: 'Resource not found'
+		data:    'The requested resource ${uri} was not found.'
+	}
+}
+
+fn prompt_not_found(name string) jsonrpc.RPCError {
+	return jsonrpc.RPCError{
+		code:    -32602 // Invalid params
+		message: 'Prompt not found: ${name}'
+	}
+}
+
+fn missing_required_argument(arg_name string) jsonrpc.RPCError {
+	return jsonrpc.RPCError{
+		code:    -32602 // Invalid params
+		message: 'Missing required argument: ${arg_name}'
+	}
+}
+
+fn tool_not_found(name string) jsonrpc.RPCError {
+	return jsonrpc.RPCError{
+		code:    -32602 // Invalid params
+		message: 'Tool not found: ${name}'
+	}
+}