refactor(src): split oversized modules

src/cli/program/helpers.ts

@@ -0,0 +1,23 @@
+export function collectOption(
+  value: string,
+  previous: string[] = [],
+): string[] {
+  return [...previous, value];
+}
+
+export function parsePositiveIntOrUndefined(
+  value: unknown,
+): number | undefined {
+  if (value === undefined || value === null || value === "") return undefined;
+  if (typeof value === "number") {
+    if (!Number.isFinite(value)) return undefined;
+    const parsed = Math.trunc(value);
+    return parsed > 0 ? parsed : undefined;
+  }
+  if (typeof value === "string") {
+    const parsed = Number.parseInt(value, 10);
+    if (Number.isNaN(parsed) || parsed <= 0) return undefined;
+    return parsed;
+  }
+  return undefined;
+}