Update Dockerfile

Dockerfile

@@ -1,23 +1,13 @@
-FROM python:3.9-slim AS builder
-
-WORKDIR /build
-
-# Copy all necessary files to builder stage
-COPY . .
-RUN pip install --no-cache-dir -r requirements.txt
-
 FROM python:3.9-slim
 
 WORKDIR /app
 
-# Copy Python packages from builder
-COPY --from=builder /usr/local/lib/python3.9/site-packages /usr/local/lib/python3.9/site-packages
+# Copy application files
+COPY app.py difydev.py requirements.txt ./
+COPY templates templates/
 
-# Copy application files from builder stage
-COPY --from=builder /build/app.py .
-COPY --from=builder /build/difydev.py .
-COPY --from=builder /build/requirements.txt .
-COPY --from=builder /build/templates templates/
+# Install dependencies
+RUN pip install --no-cache-dir -r requirements.txt
 
 # Create necessary directories
 RUN mkdir -p /app/instance/sessions && \