refactor: Migrate MCP Gateway to Spring AI MCP Server

axhub-gateway/src/main/resources/application.properties

@@ -28,3 +28,15 @@ server.shutdown=graceful
 spring.lifecycle.timeout-per-shutdown-phase=20s
 # Suppress Kafka Connection Logs
 logging.level.org.apache.kafka=ERROR
+
+# Spring AI MCP Server Settings
+spring.ai.mcp.server.protocol=STATELESS
+mcp.agent-claims-required=false
+mcp.trusted-claims-required=false
+mcp.write-approval-required=false
+mcp.default-page-size=100
+mcp.max-page-size=500
+mcp.max-pages-per-call=3
+mcp.max-stream-bytes=1048576
+mcp.max-response-bytes-from-tool=5242880
+mcp.tool-registry-sync-interval-millis=5000