Update Dockerfile

Dockerfile

@@ -1,9 +1,13 @@
-FROM mcr.microsoft.com/playwright/python:latest
+# use Playwright official Python image that already contains browsers & deps
+FROM mcr.microsoft.com/playwright/python:v1.54.0-jammy
 
 WORKDIR /app
 COPY requirements.txt /app/requirements.txt
+
+# install Python deps (including playwright==1.54.0)
 RUN pip install --no-cache-dir -r /app/requirements.txt
 
 COPY . /app
+
 EXPOSE 7860
 CMD ["python", "app.py"]