BREAKING CHANGE - Change vector store initialize-schema to false

* Change default schema initialization of vector stores from `true` to `false.`
  Users need to explicitly opt-in for schema initialization by setting the
  `initialize-schema` property on the corresponding vector store.
* Update integration tests
* Update docs

Fixes #907

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/chroma/ChromaContainerConnectionDetailsFactoryTest.java

@@ -40,7 +40,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringJUnitConfig
 @Testcontainers
-@TestPropertySource(properties = "spring.ai.vectorstore.chroma.store.collectionName=TestCollection")
+@TestPropertySource(properties = { "spring.ai.vectorstore.chroma.store.collectionName=TestCollection",
+		"spring.ai.vectorstore.chroma.initialize-schema=true" })
 class ChromaContainerConnectionDetailsFactoryTest {
 
 	@Container

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/chroma/ChromaWithToken2ContainerConnectionDetailsFactoryTest.java

@@ -40,7 +40,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringJUnitConfig
 @Testcontainers
-@TestPropertySource(properties = "spring.ai.vectorstore.chroma.store.collectionName=TestCollection")
+@TestPropertySource(properties = { "spring.ai.vectorstore.chroma.store.collectionName=TestCollection",
+		"spring.ai.vectorstore.chroma.initialize-schema=true" })
 class ChromaWithToken2ContainerConnectionDetailsFactoryTest {
 
 	@Container

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/chroma/ChromaWithTokenContainerConnectionDetailsFactoryTest.java

@@ -40,7 +40,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringJUnitConfig
 @Testcontainers
-@TestPropertySource(properties = "spring.ai.vectorstore.chroma.store.collectionName=TestCollection")
+@TestPropertySource(properties = { "spring.ai.vectorstore.chroma.store.collectionName=TestCollection",
+		"spring.ai.vectorstore.chroma.initialize-schema=true" })
 class ChromaWithTokenContainerConnectionDetailsFactoryTest {
 
 	@Container

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/milvus/MilvusContainerConnectionDetailsFactoryTest.java

@@ -45,7 +45,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 @Testcontainers
 @TestPropertySource(properties = { "spring.ai.vectorstore.milvus.metricType=COSINE",
 		"spring.ai.vectorstore.milvus.indexType=IVF_FLAT", "spring.ai.vectorstore.milvus.embeddingDimension=384",
-		"spring.ai.vectorstore.milvus.collectionName=myTestCollection" })
+		"spring.ai.vectorstore.milvus.collectionName=myTestCollection",
+		"spring.ai.vectorstore.milvus.initialize-schema=true" })
 class MilvusContainerConnectionDetailsFactoryTest {
 
 	@Container

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/opensearch/OpenSearchContainerConnectionDetailsFactoryTest.java

@@ -44,6 +44,7 @@ import org.testcontainers.junit.jupiter.Testcontainers;
 
 @SpringBootTest(properties = {
 		"spring.ai.vectorstore.opensearch.index-name=" + OpenSearchContainerConnectionDetailsFactoryTest.DOCUMENT_INDEX,
+		"spring.ai.vectorstore.opensearch.initialize-schema=true",
 		"spring.ai.vectorstore.opensearch.mapping-json="
 				+ OpenSearchContainerConnectionDetailsFactoryTest.MAPPING_JSON })
 @Testcontainers

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/qdrant/QdrantContainerConnectionDetailsFactoryTest.java

@@ -43,7 +43,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringJUnitConfig
 @Testcontainers
-@TestPropertySource(properties = "spring.ai.vectorstore.qdrant.collectionName=test_collection")
+@TestPropertySource(properties = { "spring.ai.vectorstore.qdrant.collectionName=test_collection",
+		"spring.ai.vectorstore.qdrant.initialize-schema=true" })
 public class QdrantContainerConnectionDetailsFactoryTest {
 
 	@Container

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/qdrant/QdrantContainerWithApiKeyConnectionDetailsFactoryTest.java

@@ -43,7 +43,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringJUnitConfig
 @Testcontainers
-@TestPropertySource(properties = "spring.ai.vectorstore.qdrant.collectionName=test_collection")
+@TestPropertySource(properties = { "spring.ai.vectorstore.qdrant.collectionName=test_collection",
+		"spring.ai.vectorstore.qdrant.initialize-schema=true" })
 public class QdrantContainerWithApiKeyConnectionDetailsFactoryTest {
 
 	@Container

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/typesense/TypesenseContainerConnectionDetailsFactoryTest.java

@@ -29,6 +29,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringJUnitConfig
 @TestPropertySource(properties = { "spring.ai.vectorstore.typesense.embeddingDimension=384",
+		"spring.ai.vectorstore.typesense.initialize-schema=true",
 		"spring.ai.vectorstore.typesense.collectionName=myTestCollection" })
 @Testcontainers
 class TypesenseContainerConnectionDetailsFactoryTest {

spring-ai-spring-boot-testcontainers/src/test/java/org/springframework/ai/testcontainers/service/connection/weaviate/WeaviateContainerConnectionDetailsFactoryTest.java

@@ -46,7 +46,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 @TestPropertySource(properties = { "spring.ai.vectorstore.weaviate.filter-field.country=TEXT",
 		"spring.ai.vectorstore.weaviate.filter-field.year=NUMBER",
 		"spring.ai.vectorstore.weaviate.filter-field.active=BOOLEAN",
-		"spring.ai.vectorstore.weaviate.filter-field.price=NUMBER" })
+		"spring.ai.vectorstore.weaviate.filter-field.price=NUMBER",
+		"spring.ai.vectorstore.weaviate.initialize-schema=true" })
 class WeaviateContainerConnectionDetailsFactoryTest {
 
 	@Container