fix(agent): validate UI envelopes

features/agent/components/agent-command-panel.tsx

@@ -29,6 +29,7 @@ import {
   PromptInputSubmit,
   PromptInputTextarea
 } from "@/shared/ai-elements/prompt-input";
+import { Suggestion, Suggestions } from "@/shared/ai-elements/suggestion";
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -93,6 +94,12 @@ type AgentCommandPanelProps = {
   onRejectQuestion?: (request: AgentQuestionRequest) => Promise<void> | void;
 };
 
+const AGENT_PROMPT_SUGGESTIONS = [
+  "当前监测数据质量如何，是否存在缺失、失真或可信度不足的问题？",
+  "当前监测数据中有哪些异常问题需要重点关注？",
+  "当前管网哪些区域可能存在雨污混接，判断依据是什么？"
+] as const;
+
 export function AgentCommandPanel({
   collapsing = false,
   personaState,
@@ -305,7 +312,18 @@ export function AgentCommandPanel({
           </Conversation>
         </AgentContent>
 
-        <div className="agent-panel-band border-t border-white/70 p-3">
+        <div className="agent-panel-band space-y-2 border-t border-white/70 p-3">
+          <Suggestions aria-label="推荐问题" role="group">
+            {AGENT_PROMPT_SUGGESTIONS.map((suggestion) => (
+              <Suggestion
+                key={suggestion}
+                suggestion={suggestion}
+                disabled={streaming}
+                onClick={submitPrompt}
+                className="border-slate-200/80 bg-white/75 text-slate-600 shadow-none hover:border-blue-200 hover:bg-blue-50 hover:text-blue-700"
+              />
+            ))}
+          </Suggestions>
           <PromptInput
             className="agent-panel-control rounded-2xl shadow-sm"
             onSubmit={(message) => {
@@ -626,4 +644,3 @@ function BackendMessageList({
     </motion.div>
   );
 }
-