Chandler Copeland
f221597677
feat(01-02): build branded login page with password toggle and error handling
- Split-screen layout: agent photo left (lg+), login card right
- loginAction server action: signIn credentials, redirects on AuthError
- PasswordField client component: show/hide toggle with eye/eye-off SVG
- Signed-out confirmation banner on ?signed_out=1
- Error banner on ?error=invalid with generic message
- Brand colors: gold #C9A84C accent, navy #1B2B4B text, off-white #FAF9F7 bg
- Copied /Users/ccopeland/Downloads/red.jpg to public/red.jpg
