Enhance protocol and simulation features with activity tracking and behavior definitions

- Updated protocol documentation to include new `activity` and `activityLabel` fields in the person card response, reflecting real-time activity status.
- Introduced `BehaviorDef` to define behavior rules, including need thresholds and lesson skill gains, enhancing AI decision-making.
- Revised the `DefCatalog` to incorporate behavior definitions and updated validation logic to ensure proper behavior handling.
- Enhanced the simulation to manage presence and activity states, allowing for more dynamic interactions within the school environment.
- Updated tests to validate the new activity tracking and behavior functionalities, ensuring robust performance and reliability.
- Improved localization strings to support new activity and behavior features, enhancing user experience.

src/HSchool.Simulation/NeedDecay.cs

@@ -1,26 +1,49 @@
 using Arch.Core;
+using HSchool.Ai;
 using HSchool.Content;
 
 namespace HSchool.Simulation;
 
 /// <summary>
-/// Drains needs by <see cref="NeedDef.DecayPerHour"/> × simulated hours. Core ships decay at zero
-/// so this is a no-op until something exists that can refill them.
+/// Drains needs by <see cref="NeedDef.DecayPerHour"/> × simulated hours while the person is on
+/// campus. Off campus, needs do not drain and <see cref="NeedDef.RestoredOffCampus"/> snaps to max
+/// — sleep comes back overnight, hunger does not keep falling at home.
 /// </summary>
 public static class NeedDecay
 {
-    private static readonly QueryDescription PeopleWithNeeds = new QueryDescription().WithAll<PersonNeeds>();
+    private static readonly QueryDescription PeopleWithNeeds =
+        new QueryDescription().WithAll<PersonNeeds, Presence>();
 
     public static void Apply(World world, DefCatalog catalog, double gameMinutes)
     {
-        if (gameMinutes <= 0 || !catalog.AnyNeedDecays)
+        if (gameMinutes <= 0 || (!catalog.AnyNeedDecays && !catalog.AnyNeedRestoredOffCampus))
         {
             return;
         }
 
         var hours = gameMinutes / 60d;
-        world.Query(in PeopleWithNeeds, (ref PersonNeeds needs) =>
+        world.Query(in PeopleWithNeeds, (ref PersonNeeds needs, ref Presence presence) =>
         {
+            if (!presence.IsOnCampus)
+            {
+                foreach (var def in catalog.Needs.Values)
+                {
+                    if (def.Abstract || !def.RestoredOffCampus || !needs.Values.ContainsKey(def.DefName))
+                    {
+                        continue;
+                    }
+
+                    needs.Values[def.DefName] = def.Max;
+                }
+
+                return;
+            }
+
+            if (!catalog.AnyNeedDecays)
+            {
+                return;
+            }
+
             foreach (var def in catalog.Needs.Values)
             {
                 if (def.Abstract || !needs.Values.TryGetValue(def.DefName, out var current))