feat(paddleocr-vl): add PaddleOCR-VL GPU Dockerfile, pin vllm, update CPU image deps, and improve entrypoint and tests

Dockerfile_paddleocr_vl_cpu

@@ -28,7 +28,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 # Install Python dependencies
 RUN pip install --no-cache-dir --upgrade pip && \
     pip install --no-cache-dir \
-    torch==2.5.1 --index-url https://download.pytorch.org/whl/cpu && \
+    torch==2.5.1 torchvision==0.20.1 --index-url https://download.pytorch.org/whl/cpu && \
     pip install --no-cache-dir \
     transformers \
     accelerate \
@@ -37,7 +37,10 @@ RUN pip install --no-cache-dir --upgrade pip && \
     fastapi \
     uvicorn[standard] \
     python-multipart \
-    httpx
+    httpx \
+    protobuf \
+    sentencepiece \
+    einops
 
 # Copy server files
 COPY image_support_files/paddleocr_vl_server.py /app/paddleocr_vl_server.py