Enhance AI and simulation components with presence management and routing capabilities

- Introduced the `HSchool.Ai` project, responsible for routing, day plans, and presence management.
- Updated the `HSchool.Simulation` project to integrate with the new AI functionalities, improving decision-making and presence tracking.
- Added `travelMinutes` to room and territory definitions, ensuring accurate movement calculations within the simulation.
- Enhanced the `School` class to manage presence and implement empty-time skipping functionality.
- Updated documentation to reflect the new AI features and their impact on school simulation.
- Added tests for presence management and routing to ensure robust functionality and reliability.

src/HSchool.Simulation/SimulationOptions.cs

@@ -55,6 +55,12 @@ public sealed class SimulationOptions
     /// </summary>
     public float MonthlyPayrollCap { get; set; } = 100_000f;
 
+    /// <summary>
+    /// How many people may change destination in one tick. Overflow waits for the next tick
+    /// instead of being dropped — a queue, not a cutoff.
+    /// </summary>
+    public int MaxDecisionsPerTick { get; set; } = 64;
+
     /// <summary>
     /// Working days from Monday. Five is Mon–Fri; six adds Saturday; seven is every day.
     /// </summary>