feat(addons): hemp plant, wild cherry tree, naturalist-lite

New addons:
- hemp-addon: silverlabs:hemp_crop (5 ages, indoor sun-lamp grown vs
  outdoor sky-lit), shears harvest, cauldron tincture, brownie food,
  bonemeal, sun-lamp redstone-lit block (light_dampening: 0 so crops
  beneath stay lit), grass-seed bootstrap, wandering-trader buyback,
  pillager raid stealing.
- trees-features-addon: ods_orch wild cherry tree — log/leaves/planks/
  stripped/sapling/fruit blocks with seasonal fruit states, structure-
  spawn worldgen.
- naturalist-lite-addon: 13-mob subset of Naturalist (deer, fox, owl,
  skunk, snake, hedgehog, red panda, capybara, elephant, kangaroo,
  moose, tiger, firefly), trimmed for Switch joinability.

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

hemp-addon/hemp_BP/recipes/hemp_brownie.json

@@ -0,0 +1,24 @@
+{
+  "format_version": "1.21.0",
+  "minecraft:recipe_shapeless": {
+    "description": {
+      "identifier": "silverlabs:hemp_brownie_recipe"
+    },
+    "tags": ["crafting_table"],
+    "unlock": [
+      { "item": "silverlabs:hemp_bud" },
+      { "item": "minecraft:cocoa_beans" }
+    ],
+    "ingredients": [
+      { "item": "silverlabs:hemp_bud" },
+      { "item": "silverlabs:hemp_bud" },
+      { "item": "minecraft:cocoa_beans" },
+      { "item": "minecraft:wheat" },
+      { "item": "minecraft:sugar" }
+    ],
+    "result": {
+      "item": "silverlabs:hemp_brownie",
+      "count": 2
+    }
+  }
+}