build: configure BOM for Maven Central deployment

- Add required Maven Central metadata (URL, SCM information)
- Configure flatten-maven-plugin for proper POM flattening
- Remove unnecessary local build configurations

Author: tzolov

mcp-bom/pom.xml

@@ -8,17 +8,21 @@
         <groupId>org.springframework.experimental</groupId>
         <artifactId>mcp-parent</artifactId>
         <version>0.5.0-SNAPSHOT</version>
-        <relativePath>../pom.xml</relativePath>
     </parent>
 
     <artifactId>mcp-bom</artifactId>
     <packaging>pom</packaging>
+
     <name>Spring AI MCP BOM</name>
     <description>Spring AI MCP Bill of Materials</description>
 
-    <properties>
-        <main.basedir>${basedir}/..</main.basedir>
-    </properties>
+    <url>https://github.com/spring-projects-experimental/spring-ai-mcp</url>
+
+    <scm>
+        <url>https://github.com/spring-projects-experimental/spring-ai-mcp</url>
+        <connection>git://github.com/spring-projects-experimental/spring-ai-mcp.git</connection>
+        <developerConnection>[email protected]/spring-projects-experimental/spring-ai-mcp.git</developerConnection>
+    </scm>
 
     <dependencyManagement>
         <dependencies>
@@ -58,4 +62,43 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
-</project>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>flatten-maven-plugin</artifactId>
+                <version>${flatten-maven-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>flatten</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>flatten</goal>
+                        </goals>
+                        <configuration>
+                            <updatePomFile>true</updatePomFile>
+                            <flattenMode>ossrh</flattenMode>
+                            <pomElements>
+                                <distributionManagement>remove</distributionManagement>
+                                <dependencyManagement>keep</dependencyManagement>
+                                <repositories>remove</repositories>
+                                <scm>keep</scm>
+                                <url>keep</url>
+                                <organization>resolve</organization>
+                            </pomElements>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>clean</id>
+                        <phase>clean</phase>
+                        <goals>
+                            <goal>clean</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>