fix: add fabric.mod.json to core for seamless Jar-in-Jar loading

core/build.gradle

@@ -17,6 +17,14 @@ dependencies {
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
 
+processResources {
+    inputs.property "version", project.version
+
+    filesMatching("fabric.mod.json") {
+        expand "version": project.version
+    }
+}
+
 tasks.named('test') {
     useJUnitPlatform()
 }

core/src/main/resources/fabric.mod.json

@@ -0,0 +1,17 @@
+{
+  "schemaVersion": 1,
+  "id": "jevplayer-core",
+  "version": "${version}",
+  "name": "JevPlayer Core",
+  "description": "Core decision engine and state models for JevPlayer",
+  "authors": [
+    "oiupoyt",
+    "TypeSafe AI"
+  ],
+  "contact": {
+    "homepage": "https://github.com/oiupoyt/JevPlays",
+    "sources": "https://github.com/oiupoyt/JevPlays"
+  },
+  "license": "MIT",
+  "environment": "*"
+}