Chem guidebook (#17123)

* im good at atomizing. welcome to half-finished chem guides.

* wagh

* e

* save work

* aa

* woweee UI

* finishing the last of it

* don't actually update the engine :(

---------

Co-authored-by: moonheart08 <moonheart08@users.noreply.github.com>

Content.Server/Chemistry/ReagentEffectConditions/BodyTemperature.cs

@@ -1,5 +1,6 @@
 using Content.Server.Temperature.Components;
 using Content.Shared.Chemistry.Reagent;
+using Robust.Shared.Prototypes;
 
 namespace Content.Server.Chemistry.ReagentEffectConditions
 {
@@ -13,7 +14,7 @@ namespace Content.Server.Chemistry.ReagentEffectConditions
         public float Min = 0;
 
         [DataField("max")]
-        public float Max = float.MaxValue;
+        public float Max = float.PositiveInfinity;
         public override bool Condition(ReagentEffectArgs args)
         {
             if (args.EntityManager.TryGetComponent(args.SolutionEntity, out TemperatureComponent? temp))
@@ -24,5 +25,12 @@ namespace Content.Server.Chemistry.ReagentEffectConditions
 
             return false;
         }
+
+        public override string GuidebookExplanation(IPrototypeManager prototype)
+        {
+            return Loc.GetString("reagent-effect-condition-guidebook-body-temperature",
+                ("max", float.IsPositiveInfinity(Max) ? (float) int.MaxValue : Max),
+                ("min", Min));
+        }
     }
 }