Update decision-making phase and enhance localization for presence tracking

- Marked tasks as complete in the decision-making phase documentation, indicating readiness for implementation.
- Updated the README to reflect the completion status of the decision-making phase.
- Enhanced localization strings to include new presence tracking features, improving user experience.
- Revised the game screen logic to display real-time presence status, including walking states for individuals.
- Added tests to validate the new localization strings and presence functionalities, ensuring robust performance.

src/HSchool.Content/PeopleDefs.cs

@@ -211,7 +211,7 @@ public sealed class BehaviorDef : Def
     /// <summary>A need at or below this value is urgent. Phase 21 turns that into a goal weight.</summary>
     public float NeedThreshold { get; init; }
 
-    /// <summary>Skill points a lesson adds per game hour, before traits and need state. Unused until phase 21.</summary>
+    /// <summary>Skill points a lesson adds per game hour, before traits and need state.</summary>
     public float LessonSkillPerHour { get; init; }
 
     /// <summary>Inclusive range of extra commute minutes rolled per person per day.</summary>