更新工具描述为中文，增强可读性

Co-authored-by: Copilot <copilot@github.com>

.opencode/tools/dynamic_http_call.ts

@@ -5,7 +5,7 @@ const internalToken = process.env.TJWATER_AGENT_INTERNAL_TOKEN ?? "";
 
 export default tool({
   description:
-    "Call the TJWater backend API through the local agent bridge. Provide path, optional method, and query arguments.",
+    "通过本地 Agent 桥接调用 TJWater 后端 API。需提供 API 路径、可选的请求方法以及查询参数。",
   args: {
     path: tool.schema.string().describe("Target backend API path, starting with '/'."),
     method: tool.schema

.opencode/tools/locate_features.ts

@@ -1,7 +1,7 @@
 import { tool } from "@opencode-ai/plugin";
 
 export default tool({
-  description: "Locate and highlight TJWater map features in the frontend.",
+  description: "在前端地图上定位并高亮指定的管网要素。",
   args: {
     ids: tool.schema.array(tool.schema.string()).describe("Feature ids to locate."),
     feature_type: tool.schema

.opencode/tools/show_chart.ts

@@ -1,7 +1,7 @@
 import { tool } from "@opencode-ai/plugin";
 
 export default tool({
-  description: "Render a chart in the frontend chat UI.",
+  description: "在前端对话界面中渲染图表。",
   args: {
     title: tool.schema.string().optional().describe("Chart title."),
     chart_type: tool.schema

.opencode/tools/view_history.ts

@@ -1,7 +1,7 @@
 import { tool } from "@opencode-ai/plugin";
 
 export default tool({
-  description: "Open the frontend history panel for selected features.",
+  description: "为选定的管网要素打开前端的历史记录或计算结果面板。",
   args: {
     feature_infos: tool.schema
       .array(tool.schema.tuple([tool.schema.string(), tool.schema.string()]))

.opencode/tools/view_scada.ts

@@ -1,7 +1,7 @@
 import { tool } from "@opencode-ai/plugin";
 
 export default tool({
-  description: "Open the frontend SCADA history panel.",
+  description: "打开前端的 SCADA 监测数据历史面板。",
   args: {
     device_ids: tool.schema
       .array(tool.schema.string())