refactor: move project under backend

backend/infra/docker/btcpay/docker-compose.yml

@@ -0,0 +1,43 @@
+version: "3"
+services:
+  postgres:
+    image: postgres:9.6.5
+    restart: unless-stopped
+    volumes:
+      - "postgres_datadir:/var/lib/postgresql/data"
+
+  nbxplorer:
+    image: nicolasdorier/nbxplorer:1.0.2.31
+    restart: unless-stopped
+    environment:
+      NBXPLORER_NETWORK: mainnet
+      NBXPLORER_BIND: 0.0.0.0:32838
+      NBXPLORER_CHAINS: "btc"
+      NBXPLORER_BTCRPCURL: https://alchemy:P9kZiHB6Q7CLrBlMsUN3n@bitcoin-mainnet.g.alchemy.com/v2/P9kZiHB6Q7CLrBlMsUN3n
+      NBXPLORER_BTCNODEENDPOINT: bitcoin-mainnet.g.alchemy.com:443
+      NBXPLORER_BTCRPCUSER: "alchemy"
+      NBXPLORER_BTCRPCPASSWORD: "P9kZiHB6Q7CLrBlMsUN3n"
+    volumes:
+      - "nbxplorer_datadir:/datadir"
+    depends_on:
+      - postgres
+
+  btcpayserver:
+    image: nicolasdorier/btcpayserver:1.0.2.106
+    restart: unless-stopped
+    ports:
+      - "23000:49392"
+    environment:
+      BTCPAY_POSTGRES: User ID=postgres;Host=postgres;Port=5432;Database=btcpayservermainnet
+      BTCPAY_NETWORK: mainnet
+      BTCPAY_BIND: 0.0.0.0:49392
+      BTCPAY_EXTERNALURL: https://btc.capay.hao.work/
+      BTCPAY_ROOTPATH: /
+      BTCPAY_BTCEXPLORERURL: http://nbxplorer:32838/
+    depends_on:
+      - postgres
+      - nbxplorer
+
+volumes:
+  postgres_datadir:
+  nbxplorer_datadir: