EN — Fetch a paginated article list from a WeChat Official Account by username: title, digest, cover, content url, create_time. Auto-paginates using base64 next_offset up to maxPages. Free users: 5 runs/day. ZH — 公众号文章列表抓取:标题/摘要/封面/正文链接/发布时间。支持 base64 cursor 翻页, 单次最多 maxPages 页。
Fix: Added defaultRunInput to .actor/actor.json (Layer 3 of §226).
Symptom: Apify Store auto-QA runs with empty input hit Layer 2 fallback (DEFAULT_USERNAME) instead of running with the defaultRunInput the schema advertises.
Fix: defaultRunInput mirrors schema defaults 1:1 (username, maxPages, itemsPerPage, itemShowType, raw), so empty-input runs now execute the schema-declared defaults.