Update Spring AI dependencies to 1.0.0-SNAPSHOT (#21)

- Update Spring AI version from 1.0.0-M5 to 1.0.0-SNAPSHOT across all modules
- Update artifact IDs to match new naming convention (spring-ai-*-spring-boot-starter → spring-ai-starter-model-*)
- Add central-portal-snapshots repository to all projects for SNAPSHOT dependency resolution
- Standardize repository URLs to use repo.spring.io/milestone instead of libs-milestone-local
- Remove the obsolete spring-ai-core dependency in Kotlin modules
- Update QuestionAnswerAdvisor import path in rag-with-kotlin
- Reorganize root POM module ordering for better organization

Signed-off-by: Soby Chacko <soby.chacko@broadcom.com>

agentic-patterns/routing-workflow/pom.xml

@@ -19,7 +19,7 @@
 	
 	<properties>
 		<java.version>17</java.version>
-		<spring-ai.version>1.0.0-M5</spring-ai.version>
+		<spring-ai.version>1.0.0-SNAPSHOT</spring-ai.version>
 	</properties>
 	
 	<dependencies>
@@ -32,17 +32,17 @@
 
 		<!-- <dependency>
 			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-openai-spring-boot-starter</artifactId>
+			<artifactId>spring-ai-starter-model-openai</artifactId>
 		</dependency> -->
 
 		<dependency>
 			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-anthropic-spring-boot-starter</artifactId>
+			<artifactId>spring-ai-starter-model-anthropic</artifactId>
 		</dependency>
 
 		<!-- <dependency>
 			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-ollama-spring-boot-starter</artifactId>
+			<artifactId>spring-ai-starter-model-ollama</artifactId>
 		</dependency> -->
 
 		<dependency>
@@ -81,6 +81,17 @@
 				<enabled>false</enabled>
 			</snapshots>
 		</repository>
+			<repository>
+			<id>central-portal-snapshots</id>
+			<name>Central Portal Snapshots</name>
+			<url>https://central.sonatype.com/repository/maven-snapshots/</url>
+			<releases>
+				<enabled>false</enabled>
+			</releases>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</repository>
 	</repositories>
 
 </project>