Password Input

Wraps Input (keeping all of its theming) and adds a trailing show/hide eye toggle that flips the field between password and text. The eye is a real keyboard-accessible button (aria-label + aria-pressed) and reads like our muted field icons. Used on the login and set-password screens. The file also exports PasswordRequirements(the live rule checklist) + passwordMeetsAll(), shared by set-password and the in-app change-password form so the rules never drift.