fix: JSON quote parsing

main.go

@@ -561,23 +561,39 @@ var completer = readline.NewPrefixCompleter(
 func parseCommand(line string) []string {
 	var parts []string
 	var current strings.Builder
+	var quoteChar byte // Track which quote char started this argument (' or ")
 	inQuotes := false
 
 	for i := 0; i < len(line); i++ {
 		ch := line[i]
-		switch ch {
-		case '"':
-			inQuotes = !inQuotes
-		case ' ', '\t':
-			if inQuotes {
-				current.WriteByte(ch)
-			} else if current.Len() > 0 {
+
+		// Check if this is a quote character at the start of a new argument
+		if (ch == '"' || ch == '\'') && current.Len() == 0 && !inQuotes {
+			// Starting a quoted argument - remember the quote type
+			quoteChar = ch
+			inQuotes = true
+			continue // Don't add the quote itself
+		}
+
+		// Check if this is the closing quote
+		if inQuotes && ch == quoteChar {
+			// End quoted argument
+			inQuotes = false
+			quoteChar = 0
+			continue // Don't add the quote itself
+		}
+
+		// Handle spaces/tabs
+		if (ch == ' ' || ch == '\t') && !inQuotes {
+			if current.Len() > 0 {
 				parts = append(parts, current.String())
 				current.Reset()
 			}
-		default:
-			current.WriteByte(ch)
+			continue
 		}
+
+		// Add all other characters (including quotes inside unquoted args)
+		current.WriteByte(ch)
 	}
 
 	if current.Len() > 0 {