refactor: rename McpFunction attributes (subToolName -> name, parameterSchema -> inputSchema) and remove hardcoded API key

axhub-tool-payment/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/service/PaymentApprovalService.java

@@ -31,7 +31,7 @@ import java.util.UUID;
 )
 public class PaymentApprovalService extends AbstractMcpToolService {
 
-    @McpFunction(name = "paymentapproval 툴", subToolName = "paymentapproval",
+    @McpFunction(displayName = "paymentapproval 툴", name = "paymentapproval",
         description = "결제 승인 처리",
         prompt = "결제 승인 처리 해줘.",
         mappingId = "PAY_001"

axhub-tool-payment/src/main/resources/application-local.properties

@@ -17,7 +17,6 @@ eims.mcistring.url=http://localhost:${server.port}/api/mock/esb/string
 
 # API 보안 키 설정
 mcp.security.api-keys.SHINHAN_MCP_SECRET_KEY_2026=mcp-client-1
-mcp.security.api-keys.SHINHAN_MCP_TEST_KEY_9999=mcp-client-2
 mcp.security.tenant-domains.mcp-client-1=CUSTOMER,COMMON
 mcp.security.tenant-domains.mcp-client-2=ALL