moved docker file

Dockerfile → backend/Dockerfile

@@ -4,20 +4,21 @@ FROM python:3.11.5
 
 EXPOSE 7860
 
-# Environment settings
+# Prevents Python from generating .pyc files and turns off buffering
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
-# Install dependencies
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy only the requirements file first (better for caching)
 COPY requirements.txt .
-RUN python -m pip install --no-cache-dir -r requirements.txt
 
-# Set working directory
-WORKDIR /app
-COPY . /app
+# Install dependencies
+RUN python -m pip install --no-cache-dir -r requirements.txt
 
-# Ensure correct permissions (optional but recommended)
-RUN chown -R root:root /app
+# Copy the rest of the application code
+COPY . .
 
-# Start the FastAPI application
-CMD ["gunicorn", "--bind", "0.0.0.0:7860", "-k", "uvicorn.workers.UvicornWorker", "backend.main:app"]
+# Run the FastAPI app with Gunicorn
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "-k", "uvicorn.workers.UvicornWorker", "main:app"]