Patrick Britton a3fcfe67ab feat: replace Turnstile with ALTCHA for all authentication ... - Add ALTCHA service with challenge generation and verification - Update auth and admin handlers to use ALTCHA tokens - Replace Turnstile widget with ALTCHA widget in Flutter app - Update admin frontend to use ALTCHA token - Add ALTCHA challenge endpoints for both auth and admin - Maintain development bypass for testing - Remove Turnstile dependencies from authentication flow		2026-02-16 22:18:29 -06:00
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main.go	feat: replace Turnstile with ALTCHA for all authentication	2026-02-16 22:18:29 -06:00