Standardize deployment env and deployer handling

scripts/deployment/get-wallet-address.sh

@@ -24,16 +24,6 @@ elif [[ -n "${REPO_ROOT:-}" && -f "$REPO_ROOT/.env" ]]; then
   set +a
 fi
 
-# Colors
-
-# Load environment variables
-if [ -f "$PROJECT_ROOT/.env" ]; then
-    source "$PROJECT_ROOT/.env"
-else
-    log_error "Error: .env file not found"
-    exit 1
-fi
-
 log_info "=== Wallet Address from .env Private Key ==="
 
 # Check if cast is available
@@ -43,17 +33,15 @@ if ! command -v cast &> /dev/null; then
 fi
 
 # Get private key from .env
-if [ -z "$PRIVATE_KEY" ]; then
-    log_error "Error: PRIVATE_KEY not set in .env"
+if ! require_private_key_env; then
     exit 1
 fi
 
 # Derive address
-WALLET_ADDRESS=$(cast wallet address --private-key "$PRIVATE_KEY" 2>/dev/null || echo "")
+WALLET_ADDRESS="$(derive_deployer_address || true)"
 
 if [ -z "$WALLET_ADDRESS" ]; then
-    log_error "Error: Could not derive address from private key"
-    echo "Please check that PRIVATE_KEY is valid (should start with 0x and be 66 characters)"
+    log_error "ERROR: Could not derive DEPLOYER_ADDRESS from PRIVATE_KEY."
     exit 1
 fi
 
@@ -71,15 +59,13 @@ echo "  Recommended: 2 ETH (with buffer)"
 echo "  Purpose: Gas fees for bridge deployment"
 
 # Show balances if RPC is available
+RPC_URL="${RPC_URL:-${RPC_URL_138:-${CHAIN138_RPC_URL:-}}}"
+MAINNET_RPC_URL="${MAINNET_RPC_URL:-${ETHEREUM_MAINNET_RPC:-}}"
 if [ -n "$RPC_URL" ]; then
     log_info "=== Current Balances ==="
     
     # Check Mainnet balance
-    if [ -n "$MAINNET_RPC_URL" ]; then
-        MAINNET_RPC="$MAINNET_RPC_URL"
-    else
-        MAINNET_RPC="https://eth.llamarpc.com"
-    fi
+    MAINNET_RPC="${MAINNET_RPC_URL:-https://eth.llamarpc.com}"
     
     MAINNET_BALANCE=$(cast balance "$WALLET_ADDRESS" --rpc-url "$MAINNET_RPC" 2>/dev/null || echo "0")
     MAINNET_ETH=$(cast --to-unit "$MAINNET_BALANCE" ether 2>/dev/null || echo "0")