Configure secure backend environment via .env file

.env

@@ -1,7 +1,21 @@
-NEXT_PUBLIC_DEFAULT_CHAIN=ethereum
-NEXT_PUBLIC_DEFAULT_CHAIN_ID=1
-NEXT_PUBLIC_ETH_RPC=https://mainnet.infura.io/v3/YOUR_ID
-NEXT_PUBLIC_POLYGON_RPC=https://polygon-rpc.com
-NEXT_PUBLIC_BSC_RPC=https://bsc-dataseed.binance.org/
-NEXT_PUBLIC_AVALANCHE_RPC=https://api.avax.network/ext/bc/C/rpc
-NEXT_PUBLIC_FANTOM_RPC=https://rpc.ftm.tools
+# 🔗 Supabase (Secure Access)
+SUPABASE_URL=https://rjeeuvdvqwxlkrmyhqzu.supabase.co
+SUPABASE_SERVICE_ROLE_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InJqZWV1dmR2cXd4bGtybXlocXp1Iiwicm9sZSI6InNlcnZpY2Vfcm9sZSIsImlhdCI6MTc2MTE4Njg1NSwiZXhwIjoyMDc2NzYyODU1fQ.GLwxwcMTJ9SJWZ2EvutFqBpEdJsrdRVsM5sm2R6dNxA
+
+# 🔐 JWT & Encryption
+REACT_APP_JWT_SECRET=727FEBC71F5E262E8EC318AB179F2
+REACT_APP_ENCRYPTION_KEY=34A675FC169BE3D766AE9982AB425
+
+# 🔗 Alchemy
+REACT_APP_ALCHEMY_RPC=https://eth-mainnet.g.alchemy.com/v2/x_K_2laUYi1hd0u9eD6s_
+
+# 🔗 Infura
+REACT_APP_INFURA_SECRET=iiEytS3KKgQj4yWJ2mp+Qv+S2727ieYdRI901Q614tbS/gXShy3FyQ
+REACT_APP_INFURA_RPC=https://mainnet.infura.io/v3/12b3d0197207427781a02664aee65b0e
+
+# 🌐 Stacks
+REACT_APP_STACKS_API=https://api.platform.hiro.so/v1/ext/4c3a318c42983c1951a4c82e899bbecb/stacks-blockchain-api
+
+# ⚙️ Environment Flags
+NODE_ENV=production
+DEBUG=false