__init__ and _standalone_send read TWILIO_PHONE_NUMBER via raw os.getenv,
right next to the already-scope-aware TWILIO_ACCOUNT_SID/TWILIO_AUTH_TOKEN
(_get_scoped_secret, established by merged PR #76664). Under
gateway.multiplex_profiles, a secondary profile with its own Twilio account
would silently send replies from the default profile's bridged
TWILIO_PHONE_NUMBER instead -- Twilio rejects a from-number not owned by
that profile's account (auth failure), or the message gets attributed to
the wrong sender.
__init__'s path is currently unreachable via normal secondary-profile
adapter construction ("sms" is in gateway/config.py's
PORT_BINDING_PLATFORM_VALUES, so _start_one_profile_adapters refuses to
construct a port-binding platform for a secondary profile) -- fixed anyway
for consistency with its sibling reads and to avoid a latent bug if that
guard's scope ever changes. _standalone_send's path IS reachable: it's the
generic cron/home-channel out-of-process delivery hook, which runs inside
_profile_runtime_scope.
Swaps both reads to the adapter's own existing _get_scoped_secret() helper,
matching its sibling account_sid/auth_token reads exactly -- no new
mechanism needed.
Adds a TestMultiplexProfileScope test class to tests/gateway/test_sms.py
mirroring the established Buzz/Discord/Telegram/WhatsApp/LINE/DingTalk/
Teams coverage for this bug class.
(cherry picked from commit 2aeb3148367ecf87598d4458221a5fbf30c0af01)
8099745a4e