fix(api): handle absorber-specific fields (absorption instead of decay)

- Absorbers don't have Decay in Economy, only Absorption
- Updated parser to set decay=0 and absorption from Economy.Absorption for absorbers
- Updated UI to show absorption % in Decay column for absorbers
- Updated preview panel to display absorption for absorbers

core/nexus_full_api.py

@@ -163,8 +163,6 @@ class NexusAttachment(NexusItem):
         
         # Get Economy data
         economy = props.get('Economy', {}) or {}
-        decay = safe_decimal(economy.get('Decay'))
-        efficiency = safe_decimal(economy.get('Efficiency'))
         
         # Determine attachment type from API type or name
         api_type = props.get('Type', '').lower()
@@ -181,6 +179,16 @@ class NexusAttachment(NexusItem):
         else:
             attachment_type = api_type or 'unknown'
         
+        # Get decay - absorbers don't have decay, they have absorption
+        if attachment_type == 'absorber':
+            decay = Decimal("0")
+            absorption = safe_decimal(economy.get('Absorption'))
+        else:
+            decay = safe_decimal(economy.get('Decay'))
+            absorption = Decimal("0")
+        
+        efficiency = safe_decimal(economy.get('Efficiency'))
+        
         # Parse based on attachment type
         damage_bonus = Decimal("0")
         range_bonus = Decimal("0")

ui/attachment_selector.py

@@ -251,8 +251,12 @@ class AttachmentSelectorDialog(QDialog):
                 zoom_text = "-"
             item.setText(4, zoom_text)
             
-            # Column 5: Decay (in PEC)
+            # Column 5: Decay (in PEC) or Absorption
-            item.setText(5, f"{att.decay:.3f}")
+            if att.attachment_type == 'absorber' and att.absorption > 0:
+                decay_text = f"{att.absorption * 100:.0f}%"
+            else:
+                decay_text = f"{att.decay:.3f}"
+            item.setText(5, decay_text)
             
             # Column 6: Efficiency %
             if att.efficiency_bonus > 0:
@@ -358,8 +362,13 @@ class AttachmentSelectorDialog(QDialog):
             self.preview_absorption.setText("-")
             self.preview_absorption.setStyleSheet("")
         
-        # Decay
+        # Decay or Absorption
-        self.preview_decay.setText(f"{attachment.decay:.4f} PEC")
+        if attachment.attachment_type == 'absorber' and attachment.absorption > 0:
+            self.preview_decay.setText(f"{attachment.absorption * 100:.1f}% absorption")
+            self.preview_decay.setStyleSheet("color: #9c27b0;")
+        else:
+            self.preview_decay.setText(f"{attachment.decay:.4f} PEC")
+            self.preview_decay.setStyleSheet("")
         
         # Efficiency
         if attachment.efficiency_bonus > 0: