feat(frontend): implement auth store and login page

Rewrites auth store with typed AuthUser shape (id, name, isAdmin) and
localStorage persistence. Adds login page with tanabata decorative
images, centered form, purple primary button matching the reference
design.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-04-05 03:06:32 +03:00
parent fde8672bb1
commit e21d0ef67b
4 changed files with 200 additions and 2 deletions
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