Update Dockerfile

Dockerfile

@@ -1,42 +1,33 @@
 FROM nikolaik/python-nodejs:python3.10-nodejs20
 
-# Install ffmpeg
+# Install OS dependencies
 RUN apt-get update && apt-get install -y ffmpeg
 
+# Set working directory
 WORKDIR /app
 
-# Copy root package files
-COPY package*.json ./
-
-# Copy backend package files
+# --- Backend dependencies ---
 COPY apps/backend/package*.json ./apps/backend/
-
-# Copy frontend package files
-COPY apps/frontend/package*.json ./apps/frontend/
-
-# Install root dependencies
-RUN npm install
-
-# Install backend dependencies
 WORKDIR /app/apps/backend
 RUN npm install
 RUN pip install edge-tts
 
-# Install frontend dependencies
+# --- Frontend dependencies ---
+COPY apps/frontend/package*.json ./apps/frontend/
 WORKDIR /app/apps/frontend
 RUN npm install
 
-# Copy source code
+# --- Copy all source code ---
 WORKDIR /app
 COPY . .
 
-# Build frontend
+# --- Build frontend ---
 WORKDIR /app/apps/frontend
 RUN npm run build
 
-# Expose port
+# --- Expose port ---
 EXPOSE 3000
 
-# Start backend
+# --- Start backend ---
 WORKDIR /app/apps/backend
 CMD ["node", "server.js"]