Synchronize Main with Auth and Backend Logic#502

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ngoiyaeric wants to merge 11 commits intofix/regressions-security-architecture-13947295106479740171from

sync/main-auth-backend-final-13145176703902541894

Commits on Feb 6, 2026

feat: synchronize main with auth/backend logic

google-labs-jules[bot]
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ngoiyaeric
committed

Commits on Feb 7, 2026

feat: finalize synchronization and address feedback

google-labs-jules[bot]
and
ngoiyaeric
committed
feat: finalize auth, payments, history, and collaboration features

google-labs-jules[bot]
and
ngoiyaeric
committed

Commits on Feb 8, 2026

Commits on Feb 9, 2026