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)

infra/grafana/dashboards/rtgs-overview.json

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+{
+  "uid": "rtgs-overview",
+  "title": "RTGS Overview",
+  "tags": ["rtgs"],
+  "timezone": "browser",
+  "schemaVersion": 39,
+  "version": 1,
+  "refresh": "5s",
+  "time": { "from": "now-15m", "to": "now" },
+  "templating": { "list": [] },
+  "annotations": { "list": [] },
+  "panels": [
+    {
+      "id": 1, "type": "timeseries", "title": "접수 TPS (Chanel /pay)",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 0 },
+      "fieldConfig": { "defaults": { "unit": "reqps" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "sum(rate(http_server_requests_seconds_count{uri=\"/pay/customer\"}[1m]))", "legendFormat": "접수/초" } ]
+    },
+    {
+      "id": 2, "type": "timeseries", "title": "접수 지연 p95 (s)",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 0 },
+      "fieldConfig": { "defaults": { "unit": "s" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "histogram_quantile(0.95, sum by (le) (rate(http_server_requests_seconds_bucket{uri=\"/pay/customer\"}[5m])))", "legendFormat": "p95" } ]
+    },
+    {
+      "id": 3, "type": "timeseries", "title": "정산 처리율 (Hermes, status별)",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 8 },
+      "fieldConfig": { "defaults": { "unit": "ops" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "sum by (status) (rate(rtgs_settlements_total[1m]))", "legendFormat": "{{status}}" } ]
+    },
+    {
+      "id": 4, "type": "timeseries", "title": "정산 지연 p95 (Hermes)",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 8 },
+      "fieldConfig": { "defaults": { "unit": "s" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "histogram_quantile(0.95, sum by (le) (rate(rtgs_settle_seconds_bucket[5m])))", "legendFormat": "p95" } ]
+    },
+    {
+      "id": 5, "type": "timeseries", "title": "Kafka Consumer Lag",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 16 },
+      "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "sum by (service) (kafka_consumer_fetch_manager_records_lag)", "legendFormat": "{{service}}" } ]
+    },
+    {
+      "id": 6, "type": "timeseries", "title": "JVM Heap 사용 (service별)",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 16 },
+      "fieldConfig": { "defaults": { "unit": "bytes" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "sum by (service) (jvm_memory_used_bytes{area=\"heap\"})", "legendFormat": "{{service}}" } ]
+    },
+    {
+      "id": 7, "type": "stat", "title": "완결 누계 (Prada, status별)",
+      "datasource": { "type": "prometheus", "uid": "rtgs-prom" },
+      "gridPos": { "h": 6, "w": 24, "x": 0, "y": 24 },
+      "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+      "targets": [ { "refId": "A", "datasource": { "type": "prometheus", "uid": "rtgs-prom" }, "expr": "sum by (status) (rtgs_finality_total)", "legendFormat": "{{status}}" } ]
+    }
+  ]
+}

infra/grafana/provisioning/dashboards/rtgs.yaml

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+apiVersion: 1
+providers:
+  - name: rtgs
+    type: file
+    disableDeletion: false
+    allowUiUpdates: true
+    options:
+      path: C:\ai-dev\workspace\rtgs\infra\grafana\dashboards
+      foldersFromFilesStructure: false

infra/grafana/provisioning/datasources/rtgs.yaml

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+apiVersion: 1
+datasources:
+  - name: Prometheus
+    uid: rtgs-prom
+    type: prometheus
+    access: proxy
+    url: http://localhost:9090
+    isDefault: true
+    editable: true