Enhance staffing management in school simulation by introducing API endpoints for hiring staff and assigning subjects. Implement payroll cap validation to ensure hiring and subject assignments do not exceed the allocated budget. Update the simulation options to include a monthly payroll cap and revise related classes to support new staffing functionalities. Enhance documentation to reflect these changes and update tests to validate the new features.

src/HSchool.Server/Game/WorkerCommand.cs

@@ -1,3 +1,4 @@
+using HSchool.People;
 using HSchool.Server.Api;
 using HSchool.Server.Net;
 
@@ -21,4 +22,19 @@ internal abstract record WorkerCommand
         string PersonId,
         string Locale,
         TaskCompletionSource<PersonCardResult> Result) : WorkerCommand;
+
+    internal sealed record HireStaff(
+        string PersonId,
+        string Position,
+        TaskCompletionSource<StaffingOutcome> Result) : WorkerCommand;
+
+    internal sealed record AssignSubject(
+        string PersonId,
+        string Subject,
+        TaskCompletionSource<StaffingOutcome> Result) : WorkerCommand;
+
+    internal sealed record UnassignSubject(
+        string PersonId,
+        string Subject,
+        TaskCompletionSource<StaffingOutcome> Result) : WorkerCommand;
 }