Replace ValidatePrototypeId uses with ProtoId or EntProtoId (#38814)

* The easy ones

* For certain values of easy

* Easy test

* Hair

* Fix sandbox violations

* Sort usings

Content.Server/Salvage/SalvageSystem.Magnet.cs

@@ -8,6 +8,7 @@ using Content.Shared.Radio;
 using Content.Shared.Salvage.Magnet;
 using Robust.Shared.Exceptions;
 using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
 
 namespace Content.Server.Salvage;
 
@@ -15,8 +16,7 @@ public sealed partial class SalvageSystem
 {
     [Dependency] private readonly IRuntimeLog _runtimeLog = default!;
 
-    [ValidatePrototypeId<RadioChannelPrototype>]
-    private const string MagnetChannel = "Supply";
+    private static readonly ProtoId<RadioChannelPrototype> MagnetChannel = "Supply";
 
     private EntityQuery<SalvageMobRestrictionsComponent> _salvMobQuery;
     private EntityQuery<MobStateComponent> _mobStateQuery;