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/TotalDamage.cs

@@ -1,6 +1,7 @@
 using Content.Shared.Chemistry.Reagent;
 using Content.Shared.Damage;
 using Content.Shared.FixedPoint;
+using Robust.Shared.Prototypes;
 
 namespace Content.Server.Chemistry.ReagentEffectConditions
 {
@@ -23,5 +24,12 @@ namespace Content.Server.Chemistry.ReagentEffectConditions
 
             return false;
         }
+
+        public override string GuidebookExplanation(IPrototypeManager prototype)
+        {
+            return Loc.GetString("reagent-effect-condition-guidebook-total-damage",
+                ("max", Max == FixedPoint2.MaxValue ? (float) int.MaxValue : Max.Float()),
+                ("min", Min.Float()));
+        }
     }
 }