…e npm pack

npm-packlist always drops nested .gitignore files from published
tarballs (and applies their rules to siblings, which also excluded
next-env.d.ts). Ship the template file as `gitignore` and rename it
during copy, and un-ignore the template's next-env.d.ts at the repo
root so it gets committed and packed.

createIoRedisState has a required options argument with no REDIS_URL
auto-detection, so the zero-arg spec produced a project that failed
typecheck and crashed at runtime. Pass the url explicitly and teach
the .env.example generator to list env vars referenced only by the
generated bot.ts.

…alog

The bot.ts generator reads env names from the scaffold spec while
.env.example reads the catalog; a catalog rename would silently break
generated bots. Assert every spec env reference is documented for its
adapter, with an explicit allowlist for spec-only vars.

… drop --no-color

Agent env signals (CURSOR_TRACE_ID, CLAUDECODE, REPL_ID) are set in
interactive sessions too, so auto-detection forced yes-mode on humans
with no opt-out or notice. Add an --interactive escape hatch, skip
detection when a flag already decides the mode, and announce detection
when it applies. Always print fatal errors to stderr in --quiet mode,
and remove the --no-color flag, which was never wired up (picocolors
honors NO_COLOR on its own).

Assigning undefined to a process.env key stores the literal string
"undefined", leaving truthy agent detection for later same-process
tests.

Without --, npm consumes the flags itself (-y is npm's own --yes, -d
its --loglevel alias) and the initializer only receives positionals,
silently dropping the adapter selection. Also document --interactive
and replace the removed --no-color flag with the NO_COLOR standard.

The bare-path redirect missed /:lang/-prefixed pages and the /og image
route, which are linked from the GitHub-rendered gchat README and
indexed docs URLs.

Add the package to the fixed version group and a changeset so the
release workflow versions and publishes the CLI the docs advertise.