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.

README.md

@@ -121,6 +121,7 @@ Simulation tunables live under the `Simulation` section of
 | `MinSaveIntervalMilliseconds` | 1000 | shortest gap between saves caused by pause or speed |
 | `MonthlyPayrollCap` | 100000 | monthly payroll the player may commit; hires and assignments that would exceed it are rejected |
 | `SchoolWeekDays` | 5 | working days from Monday (5 is Mon–Fri; 6 adds Saturday) |
+| `MaxDecisionsPerTick` | 64 | presence decisions processed per tick; overflow waits |
 
 ## What is deliberately missing