Improve Build Times

[JSv4]

Number of changes to tackle spiraling build times:

1. Removed more NLP / AI code from Django itself. Should increasingly be microservices, serverless functions, or called via API
2. Switched to Pytorch base image
3. Removed some old gliner code
4. Removed ALL marvin code (llm-powered hierarchy identification can wait and is not used at all anyway)
5. Add a release build and deploy action to push images to ghcr.io

This should really streamline deployments for people - reducing build times generally and allowing deploy from ghcr.io images in prod (if one were so inclined).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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