fix: include pattern in mcp tool schema generation and scaffold output

dap-was-sys/src/main/java/io/shinhanlife/dap/mcc/biz/pct/dto/SystemNoticeRequest.java

@@ -1,5 +1,6 @@
 package io.shinhanlife.dap.mcc.biz.pct.dto;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import org.springaicommunity.mcp.annotation.McpToolParam;
 
@@ -7,4 +8,8 @@ import org.springaicommunity.mcp.annotation.McpToolParam;
 public class SystemNoticeRequest {
     @McpToolParam(description = "공지 분류", required = false)
     private String category;
+
+    @McpToolParam(description = "계약심사번호", required = false)
+    @Schema(pattern = "^[A-Za-z0-9_-]{3,30}$")
+    private String contractId;
 }