- add new RoleBadge shared component for consistent role display
- export RoleBadge from shared components index
- replace inline Badge usage with RoleBadge in UsersPage role column
- use RoleBadge via renderTag prop in UserEditModal role TagInput
- simplify TagInput Pill to a generic unstyled pill, removing color logic
- import createPortal from react-dom
- add dropdownStyle state to track fixed position coordinates
- calculate and update dropdown position on open, scroll, and resize
- render dropdown and empty-state divs into document.body using createPortal
- remove separate `/zen/api/roles` fetch and `roleColorMap` state from UsersPage
- update SQL query to include aggregated roles array per user via subquery
- replace single role badge with multi-badge display supporting overflow indicator
- import Modal component from shared components
- rename emailFormOpen state to emailModalOpen for clarity
- convert handleEmailSubmit from form event handler to plain async function
- move email change form into a Modal instead of inline collapsible form
- pass pendingEmailMessage as Input description prop instead of separate paragraph
- simplify toggle button to only show when no pending message
- add `ConfirmEmailChangePage.client.js` for email change token confirmation
- add `emailChange.js` core utility to generate and verify email change tokens
- add `EmailChangeConfirmEmail.js` and `EmailChangeNotifyEmail.js` email templates
- update `UserEditModal` to handle email changes with password verification for self-edits
- update `ProfilePage` to support email change initiation
- update `UsersPage` to pass `currentUserId` to `UserEditModal`
- add email change API endpoints in `auth/api.js` and `auth/email.js`
- register `ConfirmEmailChangePage` in `AdminPage.client.js`
hykocx