v0.70.2

browser_navigate to YouTube, Reddit, or any page that replaces itself from
script while it loads waited 45 s for a navigation that was gone and answered
with an error on a page that was ready. Through this server's own tools, on
invisible-playwright 0.25.7: YouTube 4.3 s, Reddit 0.3 s, no error. A long
session could also freeze the browser for good once Firefox had written a pipe
buffer of output, since nothing read it after startup.

Both fixes are in invisible-playwright 0.25.7, and a Windows user with a
non-ASCII account name can now start the browser behind a proxy, from
invisible-core 34.31.0. The floor moves to 0.25.7 because a cached uvx
environment keeps what it resolved; the suite's core floor moves with it. No
code in this package changes.