fix(agent): answer follow-up questions instead of asking to clarify

The planner falls back to CLARIFY whenever no keyword matches and the model
plan is unavailable or malformed. Mid-conversation that produced a dead end:
a follow-up such as "如果我要报销，一般需要查哪几个文件？" was answered with a
clarification request even though the previous turn had established context.

When a non-media request carries a conversationId and a contextVersion above
zero (i.e. at least one turn has completed), route CLARIFY to KNOWLEDGE_QA
with a grounded knowledge search.

Tradeoff: this also suppresses the deliberate CLARIFY for explicitly vague
phrasing ("你看着办", "帮我处理一下") from the second turn onward, which will
now run a knowledge search instead of asking back. Blank input is still
rejected earlier by requireQuestion.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

backend/ruoyi-modules/ruoyi-aihr/src/main/java/org/dromara/aihr/agent/AihrAgentOrchestrator.java

@@ -26,6 +26,10 @@ import java.time.OffsetDateTime;
 import java.util.List;
 import java.util.UUID;
 
+import static org.dromara.aihr.agent.AihrAgentDto.Intent.KNOWLEDGE_QA;
+import static org.dromara.aihr.agent.AihrAgentDto.ResponseStyle.GROUNDED;
+import static org.dromara.aihr.agent.AihrAgentDto.Tool.KNOWLEDGE_SEARCH;
+
 @Service
 @RequiredArgsConstructor
 public class AihrAgentOrchestrator {
@@ -58,6 +62,12 @@ public class AihrAgentOrchestrator {
                 throw new ServiceException("附件不能为空", 400);
             }
             plan = planner.plan(request.question(), media);
+            if (!media && plan.intent() == Intent.CLARIFY
+                && request.contextVersion() != null && request.contextVersion() > 0
+                && request.conversationId() != null && !request.conversationId().isBlank()) {
+                plan = new AgentPlan(KNOWLEDGE_QA, request.question().trim(), KNOWLEDGE_SEARCH,
+                    false, false, GROUNDED);
+            }
             principal = principalResolver.current();
             response = media
                 ? executeMedia(plan, request, file, principal)

backend/ruoyi-modules/ruoyi-aihr/src/test/java/org/dromara/aihr/agent/AihrAgentOrchestratorTest.java

@@ -87,6 +87,21 @@ class AihrAgentOrchestratorTest {
         assertEquals(0, query.callCount);
     }
 
+    @Test
+    void clarificationAfterACompletedTurnUsesConversationAwareKnowledge() {
+        var query = new CapturingQueryService(response("通常需要查报销制度和费用标准。", null, false));
+        var service = orchestrator(query);
+        var followUp = new AgentRequest(
+            "如果我要报销，一般需要查哪几个文件？", "conversation_1", 1L, "P1", null, false);
+
+        var result = service.handle(followUp);
+
+        assertEquals(KNOWLEDGE_QA, result.intent());
+        assertEquals(followUp.question(), query.lastRequest.queryText());
+        assertEquals(AgentStatus.COMPLETED, result.status());
+        assertEquals(1, query.callCount);
+    }
+
     @Test
     void unavailableDataIsNotReportedAsNoTasks() {
         var query = new CapturingQueryService(response(