feat&fix: update paths in configuration, enhance error handling, and improve UI elements

monitor/Dockerfile

@@ -1,14 +1,11 @@
 FROM python:3.9-slim
 
-WORKDIR /app
+WORKDIR /app/monitor
 
 # Install dependencies
 COPY monitor/requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy application code
-COPY monitor/ ./
-
 # Expose port (will be overridden by environment variable)
 ARG FLASK_PORT=8080
 EXPOSE ${FLASK_PORT}