Fix requirements path in root Dockerfile

Dockerfile

@@ -1,36 +1,34 @@
-# Use Python 3.10 slim as base image
 FROM python:3.10-slim
 
-# Set working directory inside the container
 WORKDIR /app
 
 # Set environment variables
-# Prevent Python from writing .pyc files to disk
 ENV PYTHONDONTWRITEBYTECODE=1
-# Prevent Python from buffering stdout/stderr
 ENV PYTHONUNBUFFERED=1
-# Set Hugging Face cache directory to a path inside /app
 ENV HF_HOME=/app/.cache/huggingface
 
-# Install system dependencies required for building python extensions (like scikit-learn or chromadb if needed)
+# Install system packages required for compiling libraries (like chromadb)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements file first to leverage Docker cache
-COPY requirements.txt /app/
+# Copy requirements.txt from the server/ subdirectory (Crucial difference!)
+COPY server/requirements.txt /app/server/
 
-# Install python dependencies
-RUN pip install --no-cache-dir -r requirements.txt
+# Install Python dependencies
+RUN pip install --no-cache-dir -r /app/server/requirements.txt
 
 # Pre-download and cache the SentenceTransformer model during build time
 RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('BAAI/bge-large-en-v1.5')"
 
-# Copy the rest of the backend application code
+# Copy the entire project (both client/ and server/)
 COPY . /app/
 
-# Expose the port FastAPI will run on
-EXPOSE 8000
+# Change working directory to server where main.py resides
+WORKDIR /app/server
 
-# Command to run the application using uvicorn
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]
+# Expose Hugging Face Spaces default port
+EXPOSE 7860
+
+# Run FastAPI using uvicorn on port 7860
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]