Don't deprovision within running Kolibri to create preseeded DBs

[bjester]

Summary

Background

In order to speed up initial startup of Kolibri, we bundle pre-migrated SQLite databases within the WHL file. We use the deprovision management command to create these database files, although we executed it through a script that is 'running' Kolibri.

The issue

The prior approach created SQLite databases that retained data, such as Morango's Database ID model records, meaning it isn't randomly generated during startup as is desired.

What's changed

By running the management command directly, we instead produce databases that align with the intended result-- they do not have any data records but are pre-migrated. The existing process has turned into a bash script, which also verifies a few important database tables are empty.

References

https://learningequality.slack.com/archives/CB37UM23A/p1715957359298019

Reviewer guidance

1. Run make preseeddb
2. Check that kolibri/dist/home/db.sqlite3 does not have any records in morango_databaseidmodel

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Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

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[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.16.2b2.dev0_git.5.g7c30e72d.pex
Windows Installer (EXE)	kolibri-0.16.2b2.dev0+git.5.g7c30e72d-windows-setup-unsigned.exe
Debian Package	kolibri_0.16.2b2.dev0+git.5.g7c30e72d-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.2b2.dev0+git.5.g7c30e72d-0.4.2.dmg
Android Package (APK)	kolibri-0.16.2b2.dev0+git.5.g7c30e72d-0.1.3-debug.apk
TAR file	kolibri-0.16.2b2.dev0+git.5.g7c30e72d.tar.gz
WHL file	kolibri-0.16.2b2.dev0+git.5.g7c30e72d-py2.py3-none-any.whl

[rtibbles]

Code looks good, all databases appear to be present and correct, and the query checks appear to be doing their job, as they agree with the contents of the manually inspected databases.