temp adjust discovery restrictions with new gpu setup

[JannikSt]

No description provided.

[Copilot]

Pull Request Overview

This PR adjusts the node registration logic to support an updated GPU setup by refining how compute specifications are updated when a node is already active.

• Updates the compute_specs handling to separately update the GPU field when provided
• Introduces a cloned copy of the existing node for compute_specs comparison before proceeding with further actions

Comments suppressed due to low confidence (1)

crates/discovery/src/api/routes/node.rs:48

• [nitpick] Consider renaming 'existing_clone' to a more descriptive name such as 'updated_node' to better reflect its role in representing the modified node state.

let mut existing_clone = existing_node.node.clone();