feat(suitbuilder): apply CD-tier filter in loadItems (before domination)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

go-services/inventory-go/suit_solver.go

@@ -25,6 +25,7 @@ type Solver struct {
 	bestSuitItemCount int
 	highestArmorCount int
 	armorBucketsItems int
+	allowedCD         map[int]bool // nil == no CD filter (default / all tiers)
 
 	lockedSetCounts map[int]int
 	lockedSpells    map[string]bool
@@ -53,6 +54,7 @@ func newSolver(s *Server, c SearchConstraints, emit func(string, map[string]any)
 	}
 	// Required spells register first, so they always get the low bits.
 	sv.neededSpellBitmap = sv.spellIndex.getBitmap(c.RequiredSpells)
+	sv.allowedCD = allowedCritSet(c.AllowedCritDamage)
 	return sv
 }
 
@@ -259,6 +261,10 @@ func (sv *Solver) loadItems(ctx context.Context) ([]*SuitItem, error) {
 		}
 	}
 
+	// Drop armor whose CD tier is disallowed BEFORE domination, so a CD2 piece
+	// can't surpass-and-remove an allowed CD1 piece we'd then exclude.
+	items = filterArmorByCD(items, sv.allowedCD)
+
 	filtered := removeSurpassedItems(items)
 
 	jewelryFallback := map[string]bool{"Ring": true, "Bracelet": true, "Jewelry": true, "Necklace": true, "Amulet": true}