[keaven]

Add a View()-style helper for inspecting a data frame or an existing lt_tbl in a browser, with column filters enabled by default.

view_lt() serves the generated table over loopback HTTP using the existing xfun dependency. It opens the default browser, or prints and returns the URL with open = FALSE so an editor or AI tool can open its own preview. Non-interactive sessions keep serving until interrupted. The browser callback supports other viewers, and serve = FALSE retains direct HTML-file viewing.

view_lt(mtcars, pager = FALSE)

# Hand the URL to an editor or AI tool:
url = view_lt(mtcars, open = FALSE)

The helper accepts lt_interactive() options, preserves existing table formatting, and can save the HTML at a caller-supplied path. Only the generated table is served; the preview lasts for the R session. Tools on another machine may need port forwarding. No new dependencies are added.

Validation:

• CI=true Rscript tests/test-all.R: passed.
• _R_CHECK_FORCE_SUGGESTS_=false R CMD check --no-manual: status OK; optional chromote, magick, and repr were unavailable.
• Separate-process HTTP smoke test verified the preview remains reachable while Rscript runs, includes the default filters, and does not serve filesystem paths.