Fix memory leak from glibc malloc fragmentation and unsafe Image handles

Fix Wand Image memory leak in resize path

Add short SHA tag to Docker build

Disable resizing for SVG files

Add coalesce method to wand Image type stub

Fix animated WebP conversion error for variable frame sizes

Return JSON responses for all API errors

Fix import sorting

Remove unused contextlib import

Fix process leak and add uvicorn workers support

Limit ONNX/OpenCV threads to CPU count to prevent process explosion

Fix duplicate NudeClassifier causing ONNX process explosion

Reduce memory usage in video nudity detection

Use frame seeking instead of sequential reads in video extraction

Reduce NUDE_FILTER_MAX_FRAMES default from 10 to 5