Backend - Account/User Modification

[kefortney]

Note

This issue has been modified to only cover the backend aspect of this task. See #55 for frontend task

Problem / Motivation

VRWA staff need a single, reliable way to manage all platform accounts. Without a centralized table and management flow, staff will struggle to administer access, assign instructors, manage group managers, and maintain accurate trainee records—especially when dealing with phone/mail/walk-in registrants and changes in staff responsibilities.

Goals

Provide a searchable, filterable User Management Table for all accounts.
Allow VRWA admins to:

• Create new users
• Edit user details
• Change user roles (trainee/instructor/admin/group manager)
• Assign/unassign group managers to groups and manage group membership
• Activate/deactivate accounts
• Remove users (with safe deletion strategy)

Implement role-based access control (RBAC) so only authorized admins can manage accounts.