840f355f4f
API: new updateName adminProcedure in user router - Input: userId + name (min 1, max 200 chars) - Argon2 not involved (name only, not password) - Audit log: "Changed name from X to Y" UI: "Display Name" editable section in user edit modal - Shows current name with "Edit" link - Click Edit: inline input with Save/Cancel + Enter/Escape - Auto-focuses input, saves on Enter - Invalidates user list on success Co-Authored-By: claude-flow <ruv@ruv.net>