Standardize deployment env and deployer handling

scripts/deployment/deploy-all.sh

@@ -29,16 +29,6 @@ fi
 DEPLOYMENT_LOG="${PROJECT_ROOT}/deployment.log"
 CONTRACT_ADDRESSES_FILE="${PROJECT_ROOT}/contracts-deployed.json"
 
-# Load environment variables
-if [ -f "${PROJECT_ROOT}/.env" ]; then
-    set -a
-    source "${PROJECT_ROOT}/.env"
-    set +a
-else
-    log_error "Error: .env file not found. Please create .env file from .env.example"
-    exit 1
-fi
-
 # Logging function
 log() {
     log_success "[$(date +'%Y-%m-%d %H:%M:%S')] $1" | tee -a "$DEPLOYMENT_LOG"
@@ -132,6 +122,12 @@ check_prerequisites() {
             error "Required environment variable $var is not set"
         fi
     done
+
+    if [ "$SKIP_CONTRACTS" != "true" ]; then
+        export RPC_URL="${RPC_URL:-${RPC_URL_138:-${CHAIN138_RPC_URL:-}}}"
+        require_private_key_env || exit 1
+        [[ -n "${RPC_URL:-}" ]] || error "Required environment variable RPC_URL is not set"
+    fi
     
     if [ $missing -eq 0 ]; then
         log "All prerequisites met"