Freeze migration helpers: keep migration 0002_geo self-contained

[coderabbitai]

Summary

Migration 0002_geo.py (initial = True) currently imports create_default_collection_types from the runtime module specifyweb/specify/utils.py and calls it via handle_default_collection_types(apps). Because runtime helpers can change over time, future modifications to specifyweb/specify/utils.py (e.g., to create_default_collection_types, BusinessRuleException usage, or logging) could silently alter or break this already-shipped migration on fresh installs.

Desired outcome

As part of the broader effort to modularize and freeze migration code:

• Inline the relevant logic directly inside 0002_geo.py, or
• Move it into a dedicated frozen migration-only helper module (alongside the migrations package) that is never modified after being shipped.
• Ensure the migration does not reference any live runtime symbols (e.g., BusinessRuleException, logger) from specifyweb/specify/utils.

Context

• Flagged during code review of PR Merge pull request #6062 from specify/issue-5466 #8157.
• The author confirmed this will be handled in a separate PR focused on modularizing migration code and freezing all migration helpers.
• Review comment: Merge pull request #6062 from specify/issue-5466 #8157 (comment)

/cc @CarolineDenis