Update Dockerfile

Dockerfile

@@ -1,11 +1,7 @@
 FROM python:3.10-slim
 
 RUN apt-get update && apt-get install -y \
-    libgl1 \
-    libglib2.0-0 \
-    libsm6 \
-    libxext6 \
-    libxrender-dev \
+    libgl1 libglib2.0-0 libsm6 libxext6 libxrender-dev \
     && rm -rf /var/lib/apt/lists/*
 
 RUN useradd -m -u 1000 user
@@ -15,14 +11,13 @@ WORKDIR /app
 
 COPY --chown=user requirements.txt .
 
-# ── Install PyTorch CPU FIRST, explicitly, before everything else ──
+# ── Single chained command — prevents partial cache hits ──
 RUN pip install --no-cache-dir \
-    torch==2.3.0+cpu \
-    torchvision==0.18.0+cpu \
-    --index-url https://download.pytorch.org/whl/cpu
-
-# ── Then install the rest ──
-RUN pip install --no-cache-dir --upgrade -r requirements.txt
+        torch==2.3.0+cpu \
+        torchvision==0.18.0+cpu \
+        --index-url https://download.pytorch.org/whl/cpu \
+    && pip install --no-cache-dir -r requirements.txt \
+    && python -c "import torch; import torchvision; print('✅ torch', torch.__version__, '| torchvision', torchvision.__version__)"
 
 COPY --chown=user . .
 EXPOSE 7860