compute strength from quality at display time

blueprint looks up skill and calculates strength
validation checks quality range instead of strength value

app/blueprints/api/v1/collection_artifact_blueprint.rb

@@ -18,13 +18,33 @@ module Api
       end
 
       field :skills do |obj|
-        [obj.skill1, obj.skill2, obj.skill3, obj.skill4].map do |skill|
+        [
+          [obj.skill1, 1],
+          [obj.skill2, 2],
+          [obj.skill3, 3],
+          [obj.skill4, 4]
+        ].map do |skill, slot|
           next nil if skill.blank? || skill == {}
 
+          # Determine skill group based on slot
+          group = case slot
+                  when 1, 2 then 1  # Group I
+                  when 3 then 2     # Group II
+                  when 4 then 3     # Group III
+                  end
+
+          # Look up skill and compute strength from quality
+          modifier = skill['modifier']
+          quality = skill['quality'] || 1
+          level = skill['level'] || 1
+
+          artifact_skill = ArtifactSkill.find_skill(group, modifier)
+          strength = artifact_skill&.strength_for_quality(quality)
+
           {
-            modifier: skill['modifier'],
+            modifier: modifier,
-            strength: skill['strength'],
+            strength: strength,
-            level: skill['level']
+            level: level
           }
         end
       end

app/models/concerns/artifact_skill_validations.rb

@@ -24,11 +24,11 @@ module ArtifactSkillValidations
     return if quirk_artifact?
 
     modifier = skill_data['modifier']
-    strength = skill_data['strength']
+    quality = skill_data['quality']
     skill_level = skill_data['level']
 
-    unless modifier && strength && skill_level
+    unless modifier && quality && skill_level
-      errors.add(slot_name, 'must have modifier, strength, and level')
+      errors.add(slot_name, 'must have modifier, quality, and level')
       return
     end
 
@@ -43,9 +43,9 @@ module ArtifactSkillValidations
       return
     end
 
-    # Validate strength is a valid base value for this skill
+    # Validate quality is in valid range (1-5)
-    unless skill_def.valid_strength?(strength)
+    unless (1..5).cover?(quality)
-      errors.add(slot_name, "has invalid base strength #{strength}")
+      errors.add(slot_name, "has invalid quality #{quality}")
     end
   end