fix(browser): auto-install camoufox browser binary + WSL system deps guide
Root cause: 'camoufox-browser tab_list' triggers daemon which immediately
crashes because the ~662MB Camoufox browser binary was never downloaded
('camoufox-browser install' was never run). Additionally, on fresh WSL,
Linux system libraries (libgtk-3, libnss3, libatk, etc.) are missing.
Changes:
1. Add is_browser_installed() check — looks for ~/.cache/camoufox/camoufox
2. Add run_install() — runs 'camoufox-browser install' before starting daemon
3. init_browser() now auto-runs install if browser binary is missing
4. WSL-specific error message shows exact apt-get command for missing deps
5. Daemon timeout message lists all 30+ required Linux packages
6. Manual 'npx camoufox-browser@latest tab_list' command shown for debugging
Clean build: 0 errors, 0 warnings
Tara Menon
ff2e6b45e1