repo: init

Only basic things for now, to make sure the JavaFX setup works.

app/src/test/java/org/vibecoders/moongazer/AppTest.java

@@ -0,0 +1,13 @@
+/*
+ * This source file was generated by the Gradle 'init' task
+ */
+package org.vibecoders.moongazer;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class AppTest {
+    @Test void stub() {
+        assertTrue(true);
+    }
+}