Clean up the JobRequirements (#13374)

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
Closes https://github.com/space-wizards/space-station-14/issues/13348

Content.Shared/Roles/JobRequirements.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics.CodeAnalysis;
+using System.Diagnostics.CodeAnalysis;
 using Content.Shared.Players.PlayTimeTracking;
 using JetBrains.Annotations;
 using Robust.Shared.Prototypes;
@@ -7,17 +7,17 @@ using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototy
 namespace Content.Shared.Roles
 {
     /// <summary>
-    ///     Abstract class for playtime and other requirements for role gates.
+    /// Abstract class for playtime and other requirements for role gates.
     /// </summary>
     [ImplicitDataDefinitionForInheritors]
-    public abstract class JobRequirement
-    {
-        [DataField("inverted")] public bool Inverted;
-    }
+    public abstract class JobRequirement{}
 
     [UsedImplicitly]
     public sealed class DepartmentTimeRequirement : JobRequirement
     {
+        /// <summary>
+        /// Which department needs the required amount of time.
+        /// </summary>
         [DataField("department", customTypeSerializer: typeof(PrototypeIdSerializer<DepartmentPrototype>))]
         public string Department = default!;
 
@@ -25,6 +25,15 @@ namespace Content.Shared.Roles
         /// How long (in seconds) this requirement is.
         /// </summary>
         [DataField("time")] public TimeSpan Time;
+
+        /// <summary>
+        /// If true, requirement will return false if playtime above the specified time.
+        /// </summary>
+        /// <value>
+        /// <c>False</c> by default.<br />
+        /// <c>True</c> for invert general requirement
+        /// </value>
+        [DataField("inverted")] public bool Inverted;
     }
 
     [UsedImplicitly]
@@ -36,19 +45,21 @@ namespace Content.Shared.Roles
         [DataField("role", customTypeSerializer: typeof(PrototypeIdSerializer<PlayTimeTrackerPrototype>))]
         public string Role = default!;
 
-        /// <summary>
-        /// How long (in seconds) this requirement is.
-        /// </summary>
+        /// <inheritdoc cref="DepartmentTimeRequirement.Time"/>
         [DataField("time")] public TimeSpan Time;
+
+        /// <inheritdoc cref="DepartmentTimeRequirement.Inverted"/>
+        [DataField("inverted")] public bool Inverted;
     }
 
     [UsedImplicitly]
     public sealed class OverallPlaytimeRequirement : JobRequirement
     {
-        /// <summary>
-        /// How long (in seconds) this requirement is.
-        /// </summary>
+        /// <inheritdoc cref="DepartmentTimeRequirement.Time"/>
         [DataField("time")] public TimeSpan Time;
+
+        /// <inheritdoc cref="DepartmentTimeRequirement.Inverted"/>
+        [DataField("inverted")] public bool Inverted;
     }
 
     public static class JobRequirements