增加渲染节点功能，优化工具操作和样式

src/components/chat/hooks/useAgentToolActions.ts

@@ -136,6 +136,26 @@ const resolveTimeRange = (params: Record<string, unknown>) => ({
     (params.end as string | undefined),
 });
 
+const resolveStringRecord = (value: unknown): Record<string, string> => {
+  if (!value || typeof value !== "object" || Array.isArray(value)) {
+    return {};
+  }
+
+  return Object.fromEntries(
+    Object.entries(value as Record<string, unknown>)
+      .map(([key, recordValue]) => [String(key), String(recordValue ?? "")])
+      .filter(([, recordValue]) => recordValue.trim().length > 0),
+  );
+};
+
+const resolveStringArray = (value: unknown): string[] => {
+  if (!Array.isArray(value)) {
+    return [];
+  }
+
+  return value.map((item) => String(item).trim()).filter(Boolean);
+};
+
 const compactNames = (names: string[]) => {
   if (!names.length) return "";
   return names.length > 3
@@ -230,6 +250,24 @@ const buildToolAction = (
     };
   }
 
+  if (tool === "render_junctions") {
+    const nodeAreaMap = resolveStringRecord(params.node_area_map);
+    const areaIds = resolveStringArray(params.area_ids);
+    const areaColors = resolveStringRecord(params.area_colors);
+
+    return {
+      action: {
+        type: "render_junctions",
+        nodeAreaMap,
+        areaIds,
+        areaColors,
+      },
+      kind: "map",
+      title: "渲染节点分区",
+      description: `${Object.keys(nodeAreaMap).length} 个节点`,
+    };
+  }
+
   return {
     action: null,
     kind: "tool",