Closes the most common friction point hit while setting up a fresh
project from an agent harness: the CLI auto-opens the user's default
browser during auth and there is no supported way to skip it (the
existing `isLinuxServer()` path only triggers when `xdg-open` is missing
entirely).
`--no-browser` on `login` and `init` prints the URL and waits to be
visited from any browser. The flag threads through the embedded
`login()` call inside `init`.
While here:
- `init` now errors loudly when stdin is non-TTY without `--yes` instead
of default-and-exiting silently at the first prompt (which left the
project half-initialized: deps installed, no config or example file).
- Both commands gain an `Examples` block in `--help` rendered between
the description and the arguments/options list, so `--help | head`
surfaces the common invocations.
Other commands also call `login()` embedded and would benefit from
`--no-browser` too, but kept this PR scoped to the cases the friction
log called out.
nicktrn
e2b9e0f9f5