Update Dockerfile

Dockerfile

@@ -1,4 +1,4 @@
-# Use official PyTorch image with CUDA support (T4 compatible)
+# Use official PyTorch image
 FROM pytorch/pytorch:2.1.0-cuda11.8-cudnn8-runtime
 
 # Disable pip cache
@@ -7,20 +7,23 @@ ENV PIP_NO_CACHE_DIR=1
 # Set working directory
 WORKDIR /app
 
-# Copy requirements first (cache-efficient)
+# Copy requirements first
 COPY requirements.txt .
 
 # Install dependencies
 RUN pip install --upgrade pip
 RUN pip install -r requirements.txt
 
-# Now copy the actual application code
+# --- CACHE BUSTING LAYER ---
+# Change the number below (e.g., to 2, 3) whenever you change code 
+# and the server doesn't update.
+ENV BUILD_VERSION=2 
+
+# Copy application code
 COPY . .
 
-# Expose FastAPI port
+# Expose port
 EXPOSE 7860
 
-# Run FastAPI (NO reload in production)
+# Run FastAPI
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
-
-