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.

tests/HSchool.Simulation.Tests/SchoolTests.cs

@@ -50,10 +50,10 @@ public class SchoolTests
         {
             new ContentDocument("core", "defs/actions/sit.jsonc", """{ "defName": "Sit" }"""),
             new ContentDocument("core", "defs/things/chair.jsonc", """{ "defName": "Chair", "actions": ["Sit"] }"""),
-            new ContentDocument("core", "defs/territories/yard.jsonc", """{ "defName": "Yard" }"""),
+            new ContentDocument("core", "defs/territories/yard.jsonc", """{ "defName": "Yard", "travelMinutes": 1 }"""),
             new ContentDocument("core", "defs/buildings/main.jsonc", """{ "defName": "Main" }"""),
             new ContentDocument("core", "defs/floors/floor.jsonc", """{ "defName": "Floor" }"""),
-            new ContentDocument("core", "defs/rooms/office.jsonc", """{ "defName": "Office" }"""),
+            new ContentDocument("core", "defs/rooms/office.jsonc", """{ "defName": "Office", "travelMinutes": 1 }"""),
         };
         var catalog = loader.Load(["core"], documents);
         var map = new MapLayout