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.Content.Tests/MapValidationTests.cs

@@ -125,14 +125,14 @@ public class MapValidationTests
             CatalogLoader.CorePackId,
             "territories",
             "yard",
-            abstractYard ? """{ "defName": "Yard", "abstract": true }""" : """{ "defName": "Yard" }"""),
+            abstractYard ? """{ "defName": "Yard", "abstract": true }""" : """{ "defName": "Yard", "travelMinutes": 1 }"""),
         PackDocuments.Def(CatalogLoader.CorePackId, "buildings", "main", """{ "defName": "Main" }"""),
         PackDocuments.Def(CatalogLoader.CorePackId, "floors", "floor", """{ "defName": "Floor" }"""),
         PackDocuments.Def(
             CatalogLoader.CorePackId,
             "rooms",
             "office",
-            """{ "defName": "Office", "slots": [{ "key": "seat", "thing": "Chair" }], "positions": ["Principal"] }"""),
+            """{ "defName": "Office", "slots": [{ "key": "seat", "thing": "Chair" }], "positions": ["Principal"], "travelMinutes": 1 }"""),
     ];
 
     private static MapLayout MiniMap(