Update Dockerfile

Dockerfile

@@ -1,7 +1,5 @@
 FROM python:3.10-slim
-
 WORKDIR /app
-
 ENV DEBIAN_FRONTEND=noninteractive
 ENV TZ=UTC
 ENV FORCE_CUDA=0
@@ -15,7 +13,7 @@ RUN apt-get update && apt-get install -y \
     python3-dev build-essential \
     && rm -rf /var/lib/apt/lists/*
 
-# Install numpy<2 first to prevent 2.x being pulled in
+# Pin numpy<2 before anything else
 RUN pip install --no-cache-dir "numpy<2"
 
 RUN pip install --no-cache-dir \
@@ -27,13 +25,14 @@ RUN pip install --no-cache-dir \
     'git+https://github.com/facebookresearch/detectron2.git' \
     --no-build-isolation
 
-# gradio 3.50.2 + gradio_client 0.6.1 avoids the const/schema bug
+# Upgrade Gradio to 4.x to fix the Jinja2 unhashable dict bug
+# Pin Jinja2 explicitly to avoid future breakage
 RUN pip install --no-cache-dir \
-    "gradio==3.50.2" \
-    "gradio_client==0.6.1" \
-    "huggingface_hub==0.19.4" \
+    "gradio>=4.44.1" \
+    "huggingface_hub>=0.19.4" \
     "opencv-python-headless" \
-    "Pillow>=9.0,<12.0"
+    "Pillow>=9.0,<12.0" \
+    "jinja2>=3.1.2,<4.0"
 
 # Force numpy back to <2 in case any step above upgraded it
 RUN pip install --no-cache-dir "numpy<2" --force-reinstall
@@ -43,9 +42,8 @@ RUN mkdir -p /app/hf_cache && \
     chown -R user:user /app
 
 USER user
-
 COPY --chown=user . /app
-
 EXPOSE 7860
 
+# Fix: use the actual filename, not a markdown hyperlink
 CMD ["python", "app.py"]