feat(agent): implement global Agent panel with site navigation and interrupt functionality

canvas-agent/src/canvas-session.ts

@@ -49,6 +49,10 @@ export class CanvasSession {
         if (!isToolName(name)) throw new Error(`未知工具：${String(name)}`);
         let tool: ToolName = name;
         let input = parseToolInput(tool, rawInput) as Record<string, unknown>;
+        if (tool === "site_navigate") {
+            if (!this.clients.size) throw new Error("当前没有已连接网页");
+            return await this.requestCanvasTool(tool, input);
+        }
         const readTool = ["canvas_get_state", "canvas_get_selection", "canvas_export_snapshot"].includes(tool);
         if (readTool && (!this.clients.size || !this.canvasState)) throw new Error("当前没有已连接画布");
         if (tool === "canvas_get_state" || tool === "canvas_export_snapshot") return compactCanvasState(this.canvasState);