fix: add boot warning to fabric

fabric/src/main/java/net/william278/husksync/FabricHuskSync.java

@@ -208,6 +208,14 @@ public class FabricHuskSync implements DedicatedServerModInitializer, HuskSync,
         // Check for updates
         this.checkForUpdates();
 
+        log(Level.WARNING, """
+                **************
+                WARNING:
+                
+                HuskSync for Fabric is still in an alpha state and is
+                not considered production ready.
+                **************""");
+
         ModLoadedCallback.EVENT.invoker().post(FabricHuskSyncAPI.getInstance());
     }