feat(monkey): add cheeky banana-throwing monkey addon

New silverlabs:cheeky_monkey mob that wanders the lobby watching players
and throwing harmless (knockback-only) silverlabs:banana_projectile at
them. Drops 1-2 silverlabs:banana (food) on death. Spawn rules target
jungle biomes for future deployment to survival worlds; for now the pack
is bind-mounted into the lobby service only.

Also bundles a stray docker-compose tidy from earlier local work
(Jamie's world seed pinned, pet addons dropped from Jamie).

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

monkey-addon/monkey_BP/manifest.json

@@ -0,0 +1,23 @@
+{
+  "format_version": 2,
+  "header": {
+    "name": "Cheeky Monkey",
+    "description": "Curious banana-throwing monkeys that spawn naturally in jungles.",
+    "uuid": "c9d1f11c-0eef-4374-81ee-ebde67d7a0a3",
+    "version": [1, 0, 0],
+    "min_engine_version": [1, 21, 0]
+  },
+  "modules": [
+    {
+      "type": "data",
+      "uuid": "48d1d747-0765-49ab-8f50-e9b0236c8e32",
+      "version": [1, 0, 0]
+    }
+  ],
+  "dependencies": [
+    {
+      "uuid": "7195b65a-171d-4324-a2df-e36ba75ec48a",
+      "version": [1, 0, 0]
+    }
+  ]
+}