Deposit all data to Zenodo

[BharatVe]

Closes #63

Updates an existing draft only (requires --deposition-id or a setting).
Never publishes (manual step stays in Zenodo UI).
Uploads: README.md, optimap-main.zip, latest GeoJSON (.gz) and GeoPackage (.gpkg) (reuses existing dump tasks/paths).
Merges metadata non-destructively (no clobber):
Reads data/zenodo_dynamic.json and merges: version, related_identifiers (live dump links + “describes” per source).
Does NOT touch stable fields: creators, grants/funders, language, contributors, communities, upload_type, DOI, publisher.
Robust error handling around /actions/edit, 4xx/5xx, and bucket uploads.

How it works -Admin runs:

python manage.py render_zenodo_desc
python manage.py deploy_zenodo --confirm --deposition-id <draft_id>

First command creates/updates:

• data/optimap-main.zip
• data/README.md
• data/zenodo_dynamic.json

Second command:

• Reads those files, merges dynamic metadata, uploads files to the existing sandbox draft.
• Leaves stable metadata untouched and does not publish.

[nuest]

Very good first draft for the PR - thank you!

[nuest]

Minor formatting issue: please add empty lines around headlines.

[nuest]

No need to put lines here, just let the headlines do the structuring. The lines do not communicate any additional meaning.

[nuest]

Please add empty lines around lists.

[nuest]

Please do not commit the archive.

Please asap remove it from the history, don't worry about preserving specific commits. If it's easier, reset to the previous commit and add the changed files manually again...

https://www.baeldung.com/ops/git-remove-file-commit-history

[nuest]

Please check this file for uses of the env(..) function and do it the same way here, without providing a default.

If there is no token, the code should stop with an error message (using sys.exit("...")).

[BharatVe]

Implemented all requested changes except the two called out below. Also moved markdown into requirements.txt, removed the committed ZIP from history, renamed the command to deposit_zenodo, added logging, validated API base (no trailing /), centralized cache path via settings, and split the large test into render/deposit tests.

Still pending from the review:

TWe currently validate the Zenodo token at command runtime (inside deposit_zenodo) rather than failing in settings.py at import time.

We log a concise diff (changed keys + counts); a full pretty-printed JSON diff is not implemented.