First (untested) payment and db setup

src/.env.example

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+# Wowgue Game Configuration
+
+# Game Mode Selection (required)
+# PAID_SINGLE: Users pay per game, get 2x for escape, 3x with treasure
+# PAID_CREDITS: Users buy 10 credits, play 10 times, no payouts
+# FREE: Free play mode, no payments required
+GAME_MODE=FREE
+
+# Cryptocurrency Configuration
+CRYPTO_TYPE=XMR
+# Payment amounts in atomic units (piconeros for XMR, tacoshis for WOW)
+# XMR: 0.005 XMR = 5000000000 piconeros
+# WOW: 1 WOW = 100000000000 tacoshis
+SINGLE_GAME_PRICE=5000000000
+CREDITS_PACKAGE_PRICE=50000000000
+
+# MoneroPay Configuration
+MONEROPAY_ENDPOINT=http://jw-nodes:5000
+MONEROPAY_CALLBACK_BASE_URL=http://localhost:3000/api/payments/callback
+
+# Blockchain RPC Configuration
+PRIMARY_RPC_ENDPOINT=http://jw-nodes:18081
+FALLBACK_RPC_ENDPOINT=http://jw-nodes:18081
+RPC_POLL_INTERVAL=2000
+
+# Database Configuration
+DB_HOST=localhost
+DB_PORT=5432
+DB_NAME=wowgue
+DB_USER=jw
+DB_PASSWORD=jw
+
+# Server Configuration
+PORT=3000
+NODE_ENV=production
+
+# Payout Configuration
+PAYOUT_BATCH_INTERVAL=300000
+MAX_PAYOUT_BATCH_SIZE=50