fix(types): add missing return statements in async arrow functions for object steps

Fixes TypeScript error TS7030 "Not all code paths return a value" in looseObject, object, and strictObject steps.
The arrow functions in async chaining need explicit return statements in the non-promise code path.

Co-authored-by: DevilTea <16652879+DevilTea@users.noreply.github.com>

Author: Copilot