feat: DJBank 차세대 표준전문(R10) 초기 구현

- standard-layout-djb.csv: HEAD(평면구조)/EZDATA/MSG/DATA/전문종료부(@JJ) 레이아웃 정의
- standard-message-mapping-config-djb.properties: 논리키 → 필드경로 매핑 (GUID 40자, guid_prgs_no 별도 필드 등)
- standard-message-config.properties: DJB 클래스로 전환 (CSV 방식)
- GUIDGeneratorDJB: 40자 GUID 생성 (일자+시간+밀리초+시스템코드+노드+세션+Random)
- InterfaceMapperDJB: GUID 40자, guid_prgs_no 독립 필드, 응답코드 S/F 변환
- StandardMessageCoordinatorDJB: 전문 생성/응답/에러 각 단계 후처리
- 단위테스트 45개 전체 통과 (GUIDGenerator/InterfaceMapper/Layout 검증)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/main/resources/standard-layout-djb.csv

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+#-----------------------------------------------------------------------------
+# comment start with #
+# level; // 0 : root  ~ n
+# type; // 0: Message, 1: Field, 2:Group 3, Grid, 4 : Field Array, 9 : BIZ DATA
+# size // 0 : variable, > 0 fixed
+# fieldType; // 0: ELEMENT, 1: ATTRIBUTE,
+# length;
+# dataType; // 1: String, 2: Number, 10: ZZ String, 11: LL Number(LL prefix auto), 12: LL_NUMBER
+#-----------------------------------------------------------------------------
+# name                  ,level ,type  ,size ,fieldType ,length ,dataType ,refPath, refValue, value
+#-----------------------------------------------------------------------------
+# ============================================================
+# HEAD - 헤더영역 (시스템헤더부 + 공통부)
+# ============================================================
+HEAD,1,3,1,1,0,1,,,
+stnd_mesg_len,2,2,1,1,8,12,,,
+nxgn_stnd_idfr,2,2,1,1,4,1,,,JERA
+guid,2,2,1,1,40,1,,,
+guid_prgs_no,2,2,1,1,3,2,,,001
+stnd_mesg_ver,2,2,1,1,3,1,,,R10
+ortr_guid,2,2,1,1,40,1,,,
+sect_ecrpt_yn,2,2,1,1,1,1,,,N
+frst_trnm_ipad,2,2,1,1,40,1,,,
+frst_trnm_ipv4_addr,2,2,1,1,15,1,,,
+frst_trnm_mac,2,2,1,1,17,1,,,
+frst_mesg_dman_dt,2,2,1,1,8,1,,,
+frst_mesg_dman_time,2,2,1,1,9,1,,,
+frst_trnm_sys_dvcd,2,2,1,1,3,1,,,OPA
+trnm_sys_dvcd,2,2,1,1,3,1,,,EAI
+mesg_rspn_dt,2,2,1,1,8,1,,,
+mesg_rspn_time,2,2,1,1,9,1,,,
+dman_rspn_dvcd,2,2,1,1,1,1,,,S
+otsd_tmot_occu_rspn_yn,2,2,1,1,1,1,,,
+sys_env_dvcd,2,2,1,1,1,1,,,D
+tx_tycd,2,2,1,1,1,1,,,O
+synz_dvcd,2,2,1,1,1,1,,,S
+tx_id,2,2,1,1,12,1,,,
+procs_rslt_dvcd,2,2,1,1,1,1,,,S
+procs_rslt_romsg_tx_id,2,2,1,1,12,1,,,
+chnl_tycd,2,2,1,1,3,1,,,EAI
+chnl_dtls_clcd,2,2,1,1,3,1,,,
+xtis_cd,2,2,1,1,3,1,,,
+osdch_dvcd,2,2,1,1,3,1,,,
+lnkd_seqno,2,2,1,1,3,2,,,
+if_id,2,2,1,1,30,1,,,
+hmab_dvcd,2,2,1,1,1,1,,,
+mci_sesn_id,2,2,1,1,8,1,,,
+mci_node_dvcd,2,2,1,1,2,1,,,
+eai_node_dvcd,2,2,1,1,2,1,,,
+fep_node_dvcd,2,2,1,1,2,1,,,
+fep_sesn_id,2,2,1,1,8,1,,,
+ortr_restr_yn,2,2,1,1,1,1,,,
+filler,2,2,1,1,40,1,,,
+input_mesg_tycd,2,2,1,1,1,1,,,
+outp_mesg_tycd,2,2,1,1,1,1,,,
+mesg_cnty_seqno,2,2,1,1,3,2,,,
+msg_trnm_tycd,2,2,1,1,1,1,,,
+msg_trnm_brcd,2,2,1,1,3,1,,,
+msg_trnm_tlrno,2,2,1,1,6,1,,,
+tx_cmgr_cd,2,2,1,1,4,1,,,
+mgmt_brcd,2,2,1,1,3,1,,,
+tx_brcd,2,2,1,1,3,1,,,
+insl_brcd,2,2,1,1,3,1,,,
+blng_brcd,2,2,1,1,3,1,,,
+corp_tlwn_virt_brcd,2,2,1,1,3,1,,,
+tlrno,2,2,1,1,6,1,,,
+telr_jcls_cd,2,2,1,1,2,1,,,
+clsn_bfaf_dvcd,2,2,1,1,1,1,,,
+tlwn_dvcd,2,2,1,1,1,1,,,
+scfc_tmnl_dvcd,2,2,1,1,2,1,,,
+telr_cnfr_trgt_yn,2,2,1,1,1,1,,,
+telr_cnfr_yn,2,2,1,1,1,1,,,
+prcg_aprv_typ_dvcd,2,2,1,1,1,1,,,
+sq1_aprv_media_dvcd,2,2,1,1,1,1,,,
+sq1_aprv_prcg_empno,2,2,1,1,6,1,,,
+sq1_aprv_prcg_athn_no,2,2,1,1,32,1,,,
+sq2_aprv_media_dvcd,2,2,1,1,1,1,,,
+sq2_aprv_prcg_empno,2,2,1,1,6,1,,,
+sq2_aprv_prcg_athn_no,2,2,1,1,32,1,,,
+main_scn_id,2,2,1,1,12,1,,,
+tx_scn_id,2,2,1,1,12,1,,,
+pb_seqno,2,2,1,1,5,2,,,
+pb_ms_read_yn,2,2,1,1,1,1,,,
+pb_print_conn_yn,2,2,1,1,1,1,,,
+dgtl_tlwn_dvcd,2,2,1,1,1,1,,,
+idc_scan_rnno,2,2,1,1,32,1,,,
+idc_scan_no,2,2,1,1,25,1,,,
+ctsed_dt,2,2,1,1,8,1,,,
+reckn_dt,2,2,1,1,8,1,,,
+slip_no,2,2,1,1,5,2,,,
+gnrz_tmot_tktm,2,2,1,1,3,2,,,35
+tx_tmot_tktm,2,2,1,1,3,2,,,30
+idvd_info_iqry_prps_dvcd,2,2,1,1,3,1,,,
+idvd_info_iqry_rsn,2,2,1,1,100,1,,,
+rprs_msg_cd,2,2,1,1,12,1,,,
+# ============================================================
+# EZDATA - 전자금융공통영역 (corp_tlwn_virt_brcd=ERP 조건부)
+# ============================================================
+EZDATA,1,3,1,1,0,1,HEAD.corp_tlwn_virt_brcd,ERP,
+login_mhod_dvcd,2,2,1,1,1,1,,,
+elfn_bnkn_dvcd,2,2,1,1,2,1,,,01
+usr_no,2,2,1,1,16,1,,,
+rgsr_id,2,2,1,1,16,1,,,
+svr_tx_seqno,2,2,1,1,10,2,,,
+tx_seqno,2,2,1,1,10,2,,,
+priqr_tx_seqno,2,2,1,1,10,2,,,
+secu_media_dvcd,2,2,1,1,2,1,,,00
+secu_media_sta_dvcd,2,2,1,1,2,1,,,00
+brll_srcd_yn,2,2,1,1,1,1,,,N
+sq1_srcd_indc_no,2,2,1,1,2,2,,,
+sq1_srcd_pswd,2,2,1,1,32,1,,,
+sq2_srcd_indc_no,2,2,1,1,2,2,,,
+sq2_srcd_pswd,2,2,1,1,32,1,,,
+otp_athn_val,2,2,1,1,6,1,,,
+secu_media_seqno_dman_val,2,2,1,1,4,1,,,
+secu_media_seqno_athn_val,2,2,1,1,4,1,,,
+next_data_exis_yn,2,2,1,1,1,1,,,
+page_no,2,2,1,1,5,2,,,
+page_size,2,2,1,1,5,2,,,
+ttcnt,2,2,1,1,5,2,,,
+iqry_ccnt,2,2,1,1,5,2,,,
+next_data_info,2,2,1,1,100,1,,,
+cstno,2,2,1,1,10,2,,,
+otp_expr_gdnc_yn,2,2,1,1,1,1,,,N
+dup_tx_yn,2,2,1,1,1,1,,,N
+cpu_id_no,2,2,1,1,64,1,,,
+elfn_mac,2,2,1,1,17,1,,,
+hdd_srial_no,2,2,1,1,64,1,,,
+main_board_srial_no,2,2,1,1,64,1,,,
+pc_ofcl_ipad,2,2,1,1,40,1,,,
+pc_prvat_ipad,2,2,1,1,40,1,,,
+smph_old_unq_no,2,2,1,1,32,1,,,
+smph_nw_unq_no,2,2,1,1,32,1,,,
+smph_mac,2,2,1,1,12,1,,,
+smph_modl_no,2,2,1,1,20,1,,,
+ostp_cd,2,2,1,1,1,1,,,
+mcco_dvcd,2,2,1,1,1,1,,,
+elfn_use_tlno,2,2,1,1,12,1,,,
+addt_athn_yn,2,2,1,1,1,1,,,
+addt_athn_meth_dvcd,2,2,1,1,1,1,,,
+abr_ip_yn,2,2,1,1,1,1,,,N
+login_dt,2,2,1,1,8,1,,,
+login_time,2,2,1,1,6,1,,,
+cst_nm,2,2,1,1,100,1,,,
+aprv_aprvl_rol_dvcd,2,2,1,1,1,1,,,
+elfn_spr_fild,2,2,1,1,698,1,,,
+# ============================================================
+# MSG - 메시지영역 (dman_rspn_dvcd != S 조건부, 응답 시)
+# ============================================================
+MSG,1,3,0,1,0,1,HEAD.dman_rspn_dvcd,!S,
+msg_dvcd,2,2,0,1,2,1,,,NM
+msg_scop_len,2,2,0,1,8,2,,,
+MAIN_MSG,2,3,0,1,0,1,,,
+outp_atrb_cd,3,2,1,1,1,1,,,0
+outp_msg_cd,3,2,1,1,12,1,,,
+outp_msg_ctnt,3,2,1,1,200,1,,,
+outp_msg_desc,3,2,1,1,300,1,,,
+mngm_msg_cd,3,2,1,1,12,1,,,
+msg_list_rowcnt,3,2,0,1,5,2,,,00000
+msg_list,2,4,0,1,0,1,MSG.MAIN_MSG.msg_list_rowcnt,,
+outp_msg_cd,3,2,0,1,12,1,,,
+outp_msg_ctnt,3,2,0,1,200,1,,,
+outp_msg_desc,3,2,0,1,300,1,,,
+mngm_msg_cd,3,2,0,1,12,1,,,
+err_occu_item_nm,3,2,0,1,50,1,,,
+err_occu_loct,3,2,0,1,300,1,,,
+err_chgr_nm,3,2,0,1,10,1,,,
+err_chrg_cnpl_no,3,2,0,1,20,1,,,
+# ============================================================
+# DATA - 데이터부
+# ============================================================
+DATA,1,3,1,1,0,1,,,
+data_dvcd,2,2,1,1,2,1,,,IO
+data_scop_len,2,2,1,1,8,2,,,
+BIZ_DATA,2,9,1,1,0,1,,,
+# ============================================================
+# 전문종료부 (@JJ, 3자 고정)
+# ============================================================
+MESG_END_IDFR_VAL,1,2,1,1,3,10,,,@JJ