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/InheritanceTests.cs

@@ -48,7 +48,7 @@ public class InheritanceTests
         var ex = Assert.Throws<ContentLoadException>(() => _loader.Load(
             [CatalogLoader.CorePackId],
             [
-                PackDocuments.Def(CatalogLoader.CorePackId, "rooms", "office", """{ "defName": "Office" }"""),
+                PackDocuments.Def(CatalogLoader.CorePackId, "rooms", "office", """{ "defName": "Office", "travelMinutes": 1 }"""),
                 PackDocuments.Def(CatalogLoader.CorePackId, "things", "chair", """{ "defName": "Chair", "parent": "Office" }"""),
             ]));