fix(addons): bring silverlabs packs into schema compliance

- recipes: add unlock { context: always_unlocked } to all spark_pet and lobby_transfer recipes (1.20+ requirement) — fixes mc-lobby crash loop
- spark_dragon entity_sensor: wrap in subsensors[] and convert sensor_range → range [a,b] per 1.21 schema
- anthrax_cat interact: wrap event/filters in on_interact to match Bedrock 1.21 interact schema
- block format_version: bump mailbox and smart_crafting_table to 1.21.60
- item icons: replace { texture: X } with shorthand string form
- heyhe_egg description: replace bare category with menu_category block

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

addon/spark_pet_BP/entities/spark_dragon.json

@@ -190,15 +190,14 @@
           "reselect_targets": true
         },
         "minecraft:entity_sensor": {
-          "sensor_range": 500,
-          "relative_range": false,
-          "minimum_count": 1,
-          "event_filters": {
-            "test": "is_family",
-            "subject": "other",
-            "value": "whistle_signal"
-          },
-          "event": "silverlabs:whistle_called"
+          "subsensors": [
+            {
+              "range": [500, 500],
+              "minimum_count": 1,
+              "event": "silverlabs:whistle_called",
+              "event_filters": { "test": "is_family", "subject": "other", "value": "whistle_signal" }
+            }
+          ]
         },
         "minecraft:behavior.melee_attack": {
           "priority": 2,

addon/spark_pet_BP/recipes/dragon_basket.json

@@ -4,6 +4,7 @@
     "description": {
       "identifier": "silverlabs:dragon_basket_recipe"
     },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "S S",

addon/spark_pet_BP/recipes/dragon_egg.json

@@ -4,6 +4,7 @@
     "description": {
       "identifier": "silverlabs:dragon_egg"
     },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       " B ",

addon/spark_pet_BP/recipes/dragon_egg_crimson.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shapeless": {
     "description": { "identifier": "silverlabs:dragon_egg_crimson_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "ingredients": [
       { "item": "silverlabs:dragon_egg" },

addon/spark_pet_BP/recipes/dragon_egg_jungle.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shapeless": {
     "description": { "identifier": "silverlabs:dragon_egg_jungle_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "ingredients": [
       { "item": "silverlabs:dragon_egg" },

addon/spark_pet_BP/recipes/dragon_egg_oak.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shapeless": {
     "description": { "identifier": "silverlabs:dragon_egg_oak_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "ingredients": [
       { "item": "silverlabs:dragon_egg" },

addon/spark_pet_BP/recipes/dragon_egg_obsidian.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shapeless": {
     "description": { "identifier": "silverlabs:dragon_egg_obsidian_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "ingredients": [
       { "item": "silverlabs:dragon_egg" },

addon/spark_pet_BP/recipes/dragon_egg_spruce.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shapeless": {
     "description": { "identifier": "silverlabs:dragon_egg_spruce_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "ingredients": [
       { "item": "silverlabs:dragon_egg" },

addon/spark_pet_BP/recipes/dragon_egg_warped.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shapeless": {
     "description": { "identifier": "silverlabs:dragon_egg_warped_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "ingredients": [
       { "item": "silverlabs:dragon_egg" },

addon/spark_pet_BP/recipes/dragon_nest_crimson.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shaped": {
     "description": { "identifier": "silverlabs:dragon_nest_crimson_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "S S",

addon/spark_pet_BP/recipes/dragon_nest_jungle.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shaped": {
     "description": { "identifier": "silverlabs:dragon_nest_jungle_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "S S",

addon/spark_pet_BP/recipes/dragon_nest_oak.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shaped": {
     "description": { "identifier": "silverlabs:dragon_nest_oak_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "S S",

addon/spark_pet_BP/recipes/dragon_nest_obsidian.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shaped": {
     "description": { "identifier": "silverlabs:dragon_nest_obsidian_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "O O",

addon/spark_pet_BP/recipes/dragon_nest_spruce.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shaped": {
     "description": { "identifier": "silverlabs:dragon_nest_spruce_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "S S",

addon/spark_pet_BP/recipes/dragon_nest_warped.json

@@ -2,6 +2,7 @@
   "format_version": "1.21.0",
   "minecraft:recipe_shaped": {
     "description": { "identifier": "silverlabs:dragon_nest_warped_recipe" },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       "S S",

addon/spark_pet_BP/recipes/dragon_toy.json

@@ -4,6 +4,7 @@
     "description": {
       "identifier": "silverlabs:dragon_toy"
     },
+    "unlock": { "context": "always_unlocked" },
     "tags": ["crafting_table"],
     "pattern": [
       " S ",