Added missing json storage for opacity value

Author: TSERATO

plugins/fancyholograms/src/main/java/com/fancyinnovations/fancyholograms/storage/json/JsonAdapter.java

@@ -65,12 +65,16 @@ public static JsonDisplayHologramData displayHologramDataToJson(com.fancyinnovat
     }
 
     public static JsonTextHologramData textHologramDataToJson(com.fancyinnovations.fancyholograms.api.data.TextHologramData data) {
+        // Convert byte (0-255) to percentage (0-100)
+        int opacityPercentage = Math.round(((int) data.getTextOpacity() & 0xFF) * 100.0f / 255.0f);
+
         return new JsonTextHologramData(
                 data.getText(),
                 data.hasTextShadow(),
                 data.isSeeThrough(),
                 data.getTextAlignment(),
                 data.getTextUpdateInterval(),
+                opacityPercentage,
                 data.getBackground() == null ? "" : "#" + Integer.toHexString(data.getBackground().asARGB())
         );
     }
@@ -175,6 +179,9 @@ public static com.fancyinnovations.fancyholograms.api.data.HologramData fromJson
                             .setTextShadow(data.text_data().text_shadow())
                             .setSeeThrough(data.text_data().see_through())
                             .setTextUpdateInterval(data.text_data().text_update_interval())
+                            .setTextOpacity(data.text_data().text_opacity() != null
+                                ? (byte) Math.round(data.text_data().text_opacity() * 255.0 / 100.0)
+                                : (byte) 255)
                             .setBillboard(data.display_data().billboard()) // display data
                             .setScale(scale)
                             .setTranslation(translation)

plugins/fancyholograms/src/main/java/com/fancyinnovations/fancyholograms/storage/json/model/JsonTextHologramData.java

@@ -10,6 +10,7 @@ public record JsonTextHologramData(
         Boolean see_through,
         TextDisplay.TextAlignment text_alignment,
         Integer text_update_interval,
+        Integer text_opacity,
         String background_color
 ) {
 }