Cut verbose inline comments across the access-review connector changes:
the mechanical fact stays at the read site, while incident backstory
("millions of error logs in prod") and provider-specific rationale (why
Clerk reviews the wrong population) move to the commit history where they
belong. Also tighten a loose "a 4xx" to "an auth/not-found 4xx" so the
terminal-classification contract is not overstated. No behavior change.
Signed-off-by: Aurélien Sibiril <81782+aureliensibiril@users.noreply.github.com>