feat(tutorial): Tutorial model + TutorialLoader + tutorial.yaml content

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Semesterprojekt/src/test/java/thb/jeanluc/adventure/loader/TutorialLoaderTest.java

@@ -0,0 +1,27 @@
+package thb.jeanluc.adventure.loader;
+
+import org.junit.jupiter.api.Test;
+import thb.jeanluc.adventure.model.Tutorial;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class TutorialLoaderTest {
+
+    @Test
+    void loadsTheTestFixture() {
+        Tutorial t = new TutorialLoader().load(); // test-classpath /world/tutorial.yaml shadows prod
+        assertThat(t.isEmpty()).isFalse();
+        assertThat(t.intro()).isNotBlank();
+        assertThat(t.closingTips()).isNotBlank();
+        assertThat(t.steps()).hasSize(2);
+        assertThat(t.steps().getFirst().expect()).isEqualTo("look");
+        assertThat(t.steps().getFirst().minArgs()).isZero();
+    }
+
+    @Test
+    void missingFileReturnsEmptyTutorial() {
+        Tutorial t = new TutorialLoader("/no-such-base").load();
+        assertThat(t.isEmpty()).isTrue();
+        assertThat(t.steps()).isEmpty();
+    }
+}

Semesterprojekt/src/test/resources/world/tutorial.yaml

@@ -0,0 +1,14 @@
+intro: |
+  Test intro.
+steps:
+  - instruction: "Look: type 'look'."
+    expect: look
+    confirm: "Looked."
+    hint: "Type look."
+  - instruction: "Take: type 'take <item>'."
+    expect: take
+    minArgs: 1
+    confirm: "Took it."
+    hint: "Take something."
+closingTips: |
+  Test tips.