The email and callsign changesets add "did not change" errors when
created with empty attrs (on mount). Guard all field error displays
on changeset.action being set so errors only appear after user
interaction.
Replace all DaisyUI component classes with pure Tailwind CSS utility
classes following TailwindUI conventions. Use dark: variants for dark
mode instead of DaisyUI's data-theme semantic color system.
- Remove DaisyUI plugin and theme vendor files
- Configure Tailwind v4 custom dark variant for data-theme attribute
- Migrate all components: cards, tables, badges, buttons, forms,
navigation, dropdowns, modals, alerts, star ratings, spinners
- Update all auth pages (login, register, settings, password reset,
confirmation) to TailwindUI card layout
- Update content pages (about, API docs, status, packets, bad packets,
info, weather) to TailwindUI patterns
- Replace opacity-based text styling with semantic gray colors
- Update test assertions to match new class names
