fix: separate RUN steps and add .dockerignore to exclude unnecessary files

.dockerignore

@@ -0,0 +1,33 @@
+# Exclude unnecessary files from Docker build
+.git
+.gitignore
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
+*.egg
+*.egg-info
+dist
+build
+.env
+.venv
+venv/
+.pytest_cache
+.coverage
+htmlcov/
+*.log
+.DS_Store
+*.mp4
+*.jpg
+*.png
+*.jpeg
+uploads/
+*.db
+*.sqlite
+.vscode/
+.idea/
+*.swp
+*.swo
+*~

Dockerfile

@@ -19,6 +19,9 @@ RUN useradd -m -u 1000 user
 # Set working directory
 WORKDIR /app
 
+# Create upload directories first
+RUN mkdir -p uploads/source_images uploads/target_videos uploads/result_videos uploads/output
+
 # Copy requirements file
 COPY requirements.txt requirements.txt
 
@@ -46,10 +49,9 @@ RUN pip3 install --no-cache-dir --upgrade pip && \
 # Copy application code
 COPY . /app
 
-# Create upload directories with proper permissions
-RUN mkdir -p uploads/source_images uploads/target_videos uploads/result_videos uploads/output && \
-    chmod -R 755 uploads && \
-    chown -R user:user /app
+# Set ownership and permissions
+RUN chown -R user:user /app && \
+    chmod -R 755 uploads
 
 # Switch to user
 USER user