feat: 新增岗位管理、提示词模板与资源标签，完善用户提示词与推荐问题接口

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend-web/src/core/threads/hooks.ts

@@ -343,6 +343,23 @@ export function useThreadStream({
       ) {
         const e = event as { type: "llm_retry"; message: string };
         toast(e.message);
+        return;
+      }
+
+      // Context compression about to run a (blocking) summarization LLM call —
+      // surface a transient hint so the wait before the answer streams isn't a
+      // silent dead air. Emitted by DeerFlowSummarizationMiddleware.
+      if (
+        typeof event === "object" &&
+        event !== null &&
+        "type" in event &&
+        event.type === "context_compacting" &&
+        "message" in event &&
+        typeof event.message === "string" &&
+        event.message.trim()
+      ) {
+        const e = event as { type: "context_compacting"; message: string };
+        toast(e.message);
       }
     },
     onError(error) {