Implement feature extraction and inference enhancements, including async processing and MongoDB integration

main.py

@@ -1,6 +1,24 @@
-def main():
-    print("Hello from deal-classification!")
+from feature_extraction import process_single
+from inference import engine
+from services.mongo import voice_collection
 
 
+async def get_customer_record():
+    cursor = voice_collection.find({
+        "tag": "20分钟通话",
+        "matched_contacts": {
+            "$elemMatch": {
+                "wecom_id": {"$exists": True, "$ne": ""}
+            }
+        }
+    }).sort([('_id', -1)]).limit(24)
+    return await cursor.to_list(length=24)
+
+async def main():
+     records = await get_customer_record()
+     for record in records:
+        print(record)
+
 if __name__ == "__main__":
-    main()
+    import asyncio
+    asyncio.run(main())