Application Model: Postgres compatible migrations

[Pezmc]

Description

The migrations introduced in #1813 don't run in postgres.

This PR fixes that.

Related Issue(s)

#1735

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on flowforge/helm to update ConfigMap Template
  • Issue/PR raised on flowforge/CloudProject to update values for Staging/Production

Labels

• Backport needed? -> add the backport label
• Includes a DB migration? -> add the area:migration label

[knolleary]

Testing against Postgres had fallen off my todo list when we chose to park 1813 in 1.5 - and I forgot to add it as an explicit todo. Apols.

However, these changes now do not run on sqlite...

Failed to start: TypeError: Cannot read properties of undefined (reading 'id')

I'll investigate and update this PR with a cross-db working migration.

[knolleary]

Have pushed the fix to make the migration work across both sqlite and postgres - annoyingly they return different formatted results for the insert.

Have tested locally against both dbs.

[knolleary]

Am approving the general changes - @Pezmc please review the last commit and then merge if you're 👍🏻