Lazy-initialized the header-generator dependency so compiled runtimes without its fs-loaded data_files fall back to the bundled Chrome header profile instead of failing extension imports.
Added a regression test that hides header-generator data_files in a fresh Bun subprocess and verifies fallback headers are returned.
Fixes#5178
- Added six new search providers (Bing, Yahoo, Ecosia, Startpage, Mojeek, and Public) to expand coverage and parallel search capabilities.
- Implemented a unified `browserFetch` utility with headless-browser fallback and randomized Chrome profiles to improve scrape reliability.
- Integrated automated bot-defense mechanisms including CAPTCHA detection, ALTCHA proof-of-work, and homepage-token flows.
- Fixed hanging search CLI commands by ensuring proper closure of AuthStorage connections.
roboomp