[codex] v5.1 batch

[frankieg33]

Summary

This PR lands the v5.1 batch on a feature branch, keeping main untouched.

Included changes

• Persisted zoom, font, accessibility, and tag-color history settings.
• Added Help/About/onboarding flows and merged the safe breeding and best mate screens into Mating Pair Search.
• Improved the alive roster with total-stat labeling and an Adv Ready column on the far right.
• Added tag-color custom editing with RGB/hex entry and recent-color palette history.
• Added a lightweight SWF symbol extractor for game resources and reduced noisy parser fallback logging on startup.

Validation

• python -m py_compile on the touched modules.
• cmd /c build.bat completed successfully and produced the Windows executable.
• Rebuilt the release zip after the build step.

Notes

• resources.gpak was used locally for inspection and is intentionally not committed.