Resolve Modrinth projects for NeoForge servers with the NeoForge loader (#4358)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Geoff Bourne <988985+itzg@users.noreply.github.com>

tests/setuponlytests/modrinth-neoforge/docker-compose.yml

@@ -0,0 +1,11 @@
+services:
+  mc:
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
+    environment:
+      EULA: "true"
+      SETUP_ONLY: "true"
+      TYPE: NEOFORGE
+      VERSION: 1.21.1
+      MODRINTH_PROJECTS: storagedrawers
+    volumes:
+      - ./data:/data

tests/setuponlytests/modrinth-neoforge/verify.sh

@@ -0,0 +1 @@
+mc-image-helper assert fileExists "mods/StorageDrawers-neoforge-*.jar"