Initialize RTGS prototype repository

3센터 A-A-A RTGS 실시간총액결제 프로토타입 최초 버전관리 시작.
- backend: Kotlin/Gradle 멀티모듈(sequencer, common, 채널/센터 모듈)
- frontend: Vite + TS
- infra: docker-compose, prometheus/grafana, ELK 네이티브 스크립트
- loadtest(k6), sim(장애/순서/정합성 시나리오), docs(PoC 보고서/복원력방안)

iso20022/samples/pacs.008-badformat.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Document xmlns="urn:iso:std:iso:20022:tech:xsd:pacs.008.001.08">
+  <FIToFICstmrCdtTrf>
+    <GrpHdr>
+      <MsgId>2026070911110000000004</MsgId>
+      <CreDtTm>2026-07-10T16:00:00</CreDtTm>
+      <NbOfTxs>1</NbOfTxs>
+      <SttlmInf>
+        <SttlmMtd>CLRG</SttlmMtd>
+      </SttlmInf>
+    </GrpHdr>
+    <CdtTrfTxInf>
+      <PmtId>
+        <EndToEndId>2026070911110000000004</EndToEndId>
+      </PmtId>
+      <IntrBkSttlmAmt Ccy="KRW">100</IntrBkSttlmAmt>
+      <ChrgBr>ZZZZ</ChrgBr>
+      <Dbtr>
+        <Nm>BANK-1111</Nm>
+      </Dbtr>
+      <DbtrAcct>
+        <Id><Othr><Id>ACC-1111</Id></Othr></Id>
+      </DbtrAcct>
+      <DbtrAgt>
+        <FinInstnId><ClrSysMmbId><MmbId>1111</MmbId></ClrSysMmbId></FinInstnId>
+      </DbtrAgt>
+      <CdtrAgt>
+        <FinInstnId><ClrSysMmbId><MmbId>1002</MmbId></ClrSysMmbId></FinInstnId>
+      </CdtrAgt>
+      <Cdtr>
+        <Nm>BANK-1002</Nm>
+      </Cdtr>
+      <CdtrAcct>
+        <Id><Othr><Id>ACC-1002</Id></Othr></Id>
+      </CdtrAcct>
+    </CdtTrfTxInf>
+  </FIToFICstmrCdtTrf>
+</Document>