fix(application-form-fill): 优先路由填表提示并支持rar预览

tests/test_application_form_fill_trigger.py

@@ -1,6 +1,6 @@
 import pytest
 
-from review_agent.models import Conversation
+from review_agent.models import Conversation, FileAttachment
 from review_agent.skill_router import route_message_intent
 
 
@@ -43,3 +43,31 @@ def test_rule_router_does_not_misroute_normal_chat(monkeypatch, django_user_mode
     route = route_message_intent(conversation, "你好，解释一下法规背景")
 
     assert route.action == "normal_chat"
+
+
+def test_application_form_fill_prompt_preempts_attachment_reader_llm(monkeypatch, tmp_path, django_user_model):
+    user = django_user_model.objects.create_user(username="owner", password="pass")
+    conversation = Conversation.objects.create(user=user, title="会话")
+    archive_path = tmp_path / "第1章_监管信息.rar"
+    archive_path.write_bytes(b"rar")
+    FileAttachment.objects.create(
+        conversation=conversation,
+        user=user,
+        original_name="第1章_监管信息.rar",
+        storage_path=str(archive_path),
+        file_size=archive_path.stat().st_size,
+    )
+    monkeypatch.setattr(
+        "review_agent.skill_router._route_with_llm",
+        lambda conversation, content, attachments: (_ for _ in ()).throw(
+            AssertionError("明确自动填表意图不应进入 LLM 路由")
+        ),
+    )
+
+    route = route_message_intent(
+        conversation,
+        "请基于当前对话最近成功汇总的产品资料，自动提取产品关键信息并填入申报文件模板，优先生成注册证 Word 和字段来源追溯清单。",
+    )
+
+    assert route.action == "application_form_fill"
+    assert route.source == "rule_preflight"