feat: 添加多个功能模块和工具脚本

- 新增websocket客户端和服务端实现
- 添加图片压缩工具和快速压缩脚本
- 实现学生信息处理相关API
- 添加MQTT客户端和消息处理功能
- 更新.gitignore忽略更多文件类型
- 添加数据库操作工具和示例
- 实现多个测试脚本和工具类

websocket/sender.py

@@ -0,0 +1,46 @@
+import asyncio
+import websockets
+import json
+import time
+import argparse
+from faker import Faker
+
+fake = Faker("zh_CN")
+
+
+async def send_messages(stream_id):
+    # Construct URL with the provided or generated stream_id
+    uri = f"ws://192.168.0.209:9999/ws/live/barrage/{stream_id}?access_token=59c74e75-32d5-4d15-ab99-fde861004502&TENANT-ID=1"
+
+    while True:
+        try:
+            print(f"Connecting to {uri}...")
+            async with websockets.connect(uri) as websocket:
+                print(f"Connected to stream: {stream_id}")
+                while True:
+                    # Generate fake data
+                    data = {
+                        "content": fake.sentence(),
+                        "author": fake.name(),
+                        "type": "barrage",
+                    }
+                    message = json.dumps(data, ensure_ascii=False)
+
+                    # Send message
+                    await websocket.send(message)
+                    print(f"Sent: {message}")
+
+                    # Wait for 1 second
+                    await asyncio.sleep(5)
+        except Exception as e:
+            print(f"Connection failed or ended: {e}")
+
+        print("Reconnecting in 3 seconds...")
+        await asyncio.sleep(3)
+
+
+if __name__ == "__main__":
+    try:
+        asyncio.run(send_messages(123456))
+    except KeyboardInterrupt:
+        print("\nStopped by user")