Force clean rebuild and pip upgrade for supabase integration fix

Dockerfile

@@ -16,7 +16,9 @@ RUN apt-get update && apt-get install -y \
 
 # Install Python dependencies
 COPY requirements.txt .
-RUN pip install --upgrade pip && pip install -r requirements.txt
+# Force rebuild for clean supabase install
+RUN pip install --upgrade pip
+RUN pip install -r requirements.txt
 
 # Copy application code
 COPY . .