The Conflict Resolver

Help me work through this team conflict constructively.

The conflict: [WHO, ABOUT WHAT, HOW LONG]
Each side's position and underlying interest, as I understand it:
[DESCRIBE]
My role: [PARTY / MANAGER / MEDIATOR]

Provide:
1. Whether this is task conflict (can be healthy) or relationship conflict
   (usually corrosive), and what that changes
2. The underlying interests beneath the stated positions
3. Where there's genuine common ground
4. An approach to resolve it and a way to open the conversation
5. How to prevent this pattern from recurring

Aim for the underlying interests, not winning the surface argument. Flag
if this needs formal HR involvement.