add agents to support route image

src/agents/type.ts

@@ -0,0 +1,19 @@
+export interface ITool {
+  name: string;
+  description: string;
+  input_schema: any;
+
+  handler: (args: any, context: any) => Promise<string>;
+}
+
+export interface IAgent {
+  name: string;
+
+  tools: Map<string, ITool>;
+
+  shouldHandle: (req: any, config: any) => boolean;
+
+  reqHandler: (req: any, config: any) => void;
+
+  resHandler?: (payload: any, config: any) => void;
+}