Admin can edit user profile details across roles

[Odzen]

Replaces old issue #887.

Problem

Admins can currently edit account email/password in the account table, but broader profile editing is not clearly available for every account type from the admin area.

Required behavior

• Admin can search for a user by name or email.
• Admin can edit role-appropriate profile fields for mentor, mentee, partner, hub, guest, support, and moderator accounts where applicable.
• Admin can edit email/password through the existing safe account-edit flow.
• User is notified when important profile/security fields are changed.

Acceptance criteria

• Admin can open an edit form from Account Data for each supported role.
• Editable fields match the existing user-facing profile forms where practical.
• Email and password changes continue using the safe Firebase/Mongo sync path.
• Security-sensitive changes are logged or notified.
• Tests cover at least one representative profile edit and one email/password edit path.