init devops repo

Mirrors cipherdolls/devops layout. Hostinger Swarm stacks for the t4t
hosted-gateway and local docker-compose for development + e2e tests.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

local/.env.example

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+# Local dev + test env. Copy to .env and adjust.
+# Compose files load this with `env_file: [.env]`.
+
+# Postgres (used by hosted-gateway via DATABASE_URL)
+POSTGRES_USER=hosted
+POSTGRES_PASSWORD=hosted
+POSTGRES_DB=hosted_gateway
+DATABASE_URL=postgresql://hosted:hosted@postgres:5432/hosted_gateway?schema=public
+
+# Redis
+REDIS_HOST=redis
+REDIS_PORT=6379
+
+# Auth
+JWT_SECRET_KEY=dev-only-jwt-secret-change-me
+GOOGLE_OAUTH_CLIENT_ID=
+
+# Operator wallet — anvil deterministic key (account 0) for local dev/test.
+# The bootstrap step in test/setup.ts funds this address with xDAI + xBZZ
+# via anvil_setBalance + xBZZ-whale impersonation.
+OPERATOR_PRIVATE_KEY=0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80
+GNOSIS_RPC_URL=http://anvil:8545
+
+# T4T protocol contracts (Gnosis mainnet — managed by the t4t repo).
+# These are valid on the anvil fork because we --fork-url'd Gnosis mainnet.
+REGISTRY_ADDRESS=0xf81121AAbc2F7261224BaDd0Ed871711e6D1371E
+ESCROW_ADDRESS=0x34Db8E014E71928f17E23eC1272B602582222c9c
+XBZZ_ADDRESS=0xdBF3Ea6F5beE45c02255B2c26a16F300502F68da
+
+# Bee — we point at a real running Bee node (bee.ffaerber.duckdns.org) rather
+# than spinning up dev-mode Bee in compose. The remote Bee already has real
+# postage stamps for PSS routing to mainnet providers.
+BEE_API_URL=https://bee.ffaerber.duckdns.org
+BEE_POSTAGE_BATCH_ID=
+BEE_STAMP_MANAGE=false
+BEE_STAMP_LABEL=hosted-gateway-local
+BEE_STAMP_TTL_DAYS=30
+
+# Pricing
+MARKUP_BPS=2000
+WELCOME_XBZZ_WEI=50000000000000000000
+
+# Concurrency
+MAX_CONCURRENT_JOBS=200
+
+# Server
+HOSTED_GATEWAY_PORT=8080
+LOG_LEVEL=debug