Move native hints into individual modules

* Use aot.factories approach for registration
* Add tests
* final tweaks- Thanks Josh!

spring-ai-core/src/test/java/org/springframework/ai/aot/AiRuntimeHintsTests.java

@@ -0,0 +1,47 @@
+package org.springframework.ai.aot;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.apache.commons.logging.LogFactory;
+import org.junit.jupiter.api.Test;
+import org.springframework.aot.hint.TypeReference;
+import org.springframework.util.Assert;
+
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class AiRuntimeHintsTests {
+
+	@JsonInclude
+	static class TestApi {
+
+		static class FooBar {
+
+		}
+
+		record Foo(@JsonProperty("name") String name) {
+		}
+
+		@JsonInclude
+		enum Bar {
+
+			A, B
+
+		}
+
+	}
+
+	@Test
+	void discoverRelevantClasses() throws Exception {
+		var classes = AiRuntimeHints.findJsonAnnotatedClassesInPackage(TestApi.class);
+		var included = Set.of(TestApi.Bar.class, TestApi.Foo.class)
+			.stream()
+			.map(t -> TypeReference.of(t.getName()))
+			.collect(Collectors.toSet());
+		LogFactory.getLog(getClass()).info(classes);
+		Assert.state(classes.containsAll(included), "there should be all of the enumerated classes. ");
+	}
+
+}

spring-ai-core/src/test/java/org/springframework/ai/aot/KnuddelsRuntimeHintsTest.java

@@ -0,0 +1,19 @@
+package org.springframework.ai.aot;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.aot.hint.RuntimeHints;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.aot.hint.predicate.RuntimeHintsPredicates.resource;
+
+class KnuddelsRuntimeHintsTest {
+
+	@Test
+	void knuddels() {
+		var runtimeHints = new RuntimeHints();
+		var knuddels = new KnuddelsRuntimeHints();
+		knuddels.registerHints(runtimeHints, null);
+		assertThat(runtimeHints).matches(resource().forResource("com/knuddels/jtokkit/cl100k_base.tiktoken"));
+	}
+
+}

spring-ai-core/src/test/java/org/springframework/ai/aot/SpringAiCoreRuntimeHintsTest.java

@@ -0,0 +1,19 @@
+package org.springframework.ai.aot;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.aot.hint.RuntimeHints;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.aot.hint.predicate.RuntimeHintsPredicates.resource;
+
+class SpringAiCoreRuntimeHintsTest {
+
+	@Test
+	void core() {
+		var runtimeHints = new RuntimeHints();
+		var knuddels = new SpringAiCoreRuntimeHints();
+		knuddels.registerHints(runtimeHints, null);
+		assertThat(runtimeHints).matches(resource().forResource("embedding/embedding-model-dimensions.properties"));
+	}
+
+}