feat(agent): add frontend action bridge

.opencode/tools/locate_features.ts

@@ -1,4 +1,5 @@
 import { tool } from "@opencode-ai/plugin";
+import { executeFrontendAction } from "./frontend_action.js";
 
 export default tool({
   description: "在前端地图上定位并高亮指定的管网要素。",
@@ -9,14 +10,13 @@ export default tool({
         "Why this map positioning action is needed for the user request.",
       ),
     ids: tool.schema
-      .array(tool.schema.string())
+      .array(tool.schema.string().min(1)).min(1).max(100)
       .describe("Feature ids to locate."),
     feature_type: tool.schema
-      .enum(["junction", "pipe", "valve", "reservoir", "pump", "tank"])
+      .enum(["junction", "pipe", "valve", "reservoir", "pump", "tank", "conduit", "orifice", "outfall"])
       .describe("Type of feature to locate."),
   },
-  async execute() {
-    // 前端工具只负责生成 tool part，真正的地图动作由 Agent SSE 适配层转发给浏览器执行。
-    return "已在地图上定位到指定要素。";
+  async execute(args, context) {
+    return executeFrontendAction("locate_features", args, context);
   },
 });