Fix Dockerfile: improve mkdir command and .dockerignore

.dockerignore

@@ -28,9 +28,9 @@ output/
 uploads/
 pdfs/
 
-# Documentation (keep README.md)
-*.md
-!README.md
+# Documentation - don't exclude README.md (needed for Space config)
+# *.md
+# !README.md
 
 # Other
 .DS_Store

Dockerfile

@@ -29,7 +29,9 @@ RUN pip install --no-cache-dir --upgrade pip && \
 COPY . .
 
 # Create necessary directories
-RUN mkdir -p output pdfs uploads
+RUN mkdir -p output && \
+    mkdir -p pdfs && \
+    mkdir -p uploads
 
 # Expose Hugging Face Spaces default port
 EXPOSE 7860