Update Dockerfile

Dockerfile

@@ -1,21 +1,13 @@
 # ==========================================
 # Stage 1: Build the React + Vite Frontend
 # ==========================================
-# Upgraded to Node 20 to support Tailwind CSS v4's high-speed "Oxide" engine
 FROM node:20-alpine AS frontend-builder
-
 WORKDIR /app/frontend
 
-# Copy package files from the frontend folder
 COPY frontend/package*.json ./
-
-# Install frontend dependencies
 RUN npm install
 
-# Copy the rest of the frontend code
 COPY frontend/ .
-
-# Build the React application (this creates the optimized /dist folder)
 RUN npm run build
 
 
@@ -23,36 +15,26 @@ RUN npm run build
 # Stage 2: Setup the Python FastAPI Backend
 # ==========================================
 FROM python:3.10-slim
-
 WORKDIR /app
 
-# Copy the Python requirements file from the root directory
 COPY requirements.txt .
-
-# Install Python dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy the backend Python code
-COPY backend/ /app/backend/
-
-# Copy the compiled React frontend from Stage 1 into the Python container
-COPY --from=frontend-builder /app/frontend/dist /app/frontend/dist
 
 # ==========================================
-# Stage 3: Hugging Face User Permissions
+# Stage 3: Hugging Face User Permissions & Final Assembly
 # ==========================================
-# Hugging Face requires running as a non-root user
 RUN useradd -m -u 1000 user
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 WORKDIR $HOME/app
 
-# Copy all remaining files into the final user home directory and set ownership
+# 1. Copy the backend and local project files into the user directory
 COPY --chown=user . $HOME/app
 
-# Expose the default Hugging Face port
-EXPOSE 7860
+# 2. Copy the compiled React frontend from Stage 1 into the EXACT folder FastAPI expects
+COPY --chown=user --from=frontend-builder /app/frontend/dist $HOME/app/frontend/dist
 
-# Start the FastAPI application
+EXPOSE 7860
 CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]