Expand HackerNews from 1 command to 8, covering all major HN use cases.
All YAML adapters, strategy: public, browser: false.
- new/best/ask/show/jobs: Firebase API list endpoints with deleted/dead filtering
- search: Algolia API with query + sort (relevance/date)
- user: Firebase user profile with date formatting
- top.yaml: add filter for deleted/dead items + dynamic pre-fetch limit
- E2E tests for all 7 new commands
- Update README, README.zh-CN, adapter docs
Co-authored-by: jackwener <jakevingoo@gmail.com>