docs: 📝 添加实时监控功能文档

- 新增实时监控功能使用说明
- 添加摄像头实时识别功能介绍
- 完善操作指南和功能特点说明
- 补充文件存储路径说明

Author: ctkqiang

src/convert.py

@@ -0,0 +1,12 @@
+import tensorflow as tf
+
+model_path = "../models/yingyan_model.h5"
+model = tf.keras.models.load_model(model_path)
+
+converter = tf.lite.TFLiteConverter.from_keras_model(model)
+tflite_model = converter.convert()
+
+# 保存为 .tflite 文件
+tflite_model_path = "../models/yingyan_model.tflite"
+with open(tflite_model_path, "wb") as f:
+    f.write(tflite_model)