feat(muse-cli): streamlined account argument handling and extracted clean inner invocation wrapper

bin/muse

@@ -14,11 +14,8 @@ NETVM_BIN="$(cd -P "$(dirname "$SCRIPT_SRC")" && pwd)"
 VALID_ACCOUNTS=("muse" "pip" "646" "opm" "def" "dev")
 
 show_usage() {
-    echo "Usage: muse --account <name> <command> [arguments...]"
-    echo "       muse -a <name> <command> [arguments...]"
-    echo ""
-    echo "Required:"
-    echo "  -a, --account <name>    Target NetVM account / node identity"
+    echo "Usage: muse <account> <command> [arguments...]"
+    echo "       muse -a <account> <command> [arguments...]"
     echo ""
     echo "Available accounts:"
     for acct in "${VALID_ACCOUNTS[@]}"; do
@@ -42,6 +39,17 @@ show_usage() {
 ACCOUNT=""
 POSITIONAL=()
 
+# Pre-check if first argument is a valid account name (e.g. 'muse 646 ...')
+if [[ $# -gt 0 ]]; then
+    for acct in "${VALID_ACCOUNTS[@]}"; do
+        if [[ "$1" == "$acct" ]]; then
+            ACCOUNT="$1"
+            shift
+            break
+        fi
+    done
+fi
+
 while [[ $# -gt 0 ]]; do
     case "$1" in
         -a|--account)
@@ -72,7 +80,7 @@ while [[ $# -gt 0 ]]; do
 done
 
 if [[ -z "$ACCOUNT" ]]; then
-    echo "Error: No account specified. Please specify an account with -a or --account." >&2
+    echo "Error: No account specified. Specify account as first argument or with -a/--account." >&2
     echo ""
     show_usage
     exit 1