deploy: rename Dockerfile.hf -> Dockerfile on the Space side

Dockerfile

@@ -51,9 +51,11 @@ WORKDIR /app
 RUN useradd -m -u 1000 user
 
 # System deps for PDF / image processing only -- no OCR / paddle.
+# Debian 12+ (trixie) renamed libgl1-mesa-glx -> libgl1 and libxrender-dev
+# is no longer needed at runtime (runtime is libxrender1).
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-        libglib2.0-0 libsm6 libxext6 libxrender-dev libgl1-mesa-glx curl \
+        libglib2.0-0 libsm6 libxext6 libxrender1 libgl1 curl \
     && rm -rf /var/lib/apt/lists/*
 
 # Bring the virtualenv from the builder stage.