feat(attachments): 增加附件阅读解析能力

review_agent/file_summary/workflow_trigger.py

@@ -6,6 +6,19 @@ from review_agent.models import Conversation, FileAttachment
 
 
 TRIGGER_KEYWORDS = ("自动汇总", "文件目录", "页数", "目录与页数", "文件清单")
+ATTACHMENT_READER_KEYWORDS = (
+    "阅读附件",
+    "读取附件",
+    "解析附件",
+    "分析附件",
+    "查看附件",
+    "附件详情",
+    "文件详情",
+    "总结附件",
+    "总结文件",
+    "分析这个文件",
+    "阅读这个文件",
+)
 
 
 @dataclass(frozen=True)
@@ -28,3 +41,18 @@ def evaluate_file_summary_trigger(conversation: Conversation, content: str) -> T
         return TriggerResult(should_start=False, reason="missing_attachment")
 
     return TriggerResult(should_start=True, workflow_type="file_summary")
+
+
+def evaluate_attachment_reader_trigger(conversation: Conversation, content: str) -> TriggerResult:
+    text = (content or "").strip()
+    if not any(keyword in text for keyword in ATTACHMENT_READER_KEYWORDS):
+        return TriggerResult(should_start=False, reason="not_matched")
+
+    has_attachment = FileAttachment.objects.filter(
+        conversation=conversation,
+        is_active=True,
+    ).exclude(upload_status=FileAttachment.UploadStatus.DELETED).exists()
+    if not has_attachment:
+        return TriggerResult(should_start=False, reason="missing_attachment")
+
+    return TriggerResult(should_start=True, workflow_type="attachment_reader")