Under gateway.multiplex_profiles, os.environ holds the DEFAULT profile's
values and a secondary profile's .env exists only in its secret scope.
Matrix, Home Assistant, Teams, DingTalk, SMS and Telegram already read
their *secret* scope-aware, but read the paired endpoint/identity raw from
os.environ — so a secondary's token/secret/password was paired with the
default profile's host or app identity:
- Matrix: MATRIX_HOMESERVER / MATRIX_USER_ID / MATRIX_DEVICE_ID in
__init__ and MATRIX_HOMESERVER in _standalone_send -> the secondary's
access token was sent to the default's homeserver (and its E2EE device
id reused).
- Home Assistant: HASS_URL in __init__ and _standalone_send -> the
secondary's HASS_TOKEN was posted to the default's HA instance.
- Teams: TEAMS_CLIENT_ID / TEAMS_TENANT_ID (env-first, even over extra),
TEAMS_SERVICE_URL, TEAMS_HOME_CHANNEL(_NAME) in _credentials,
_env_enablement, _standalone_send and __init__ -> Bot Framework token
requested for the default's app with the secondary's secret; cron
home channel was the default's conversation.
- DingTalk: DINGTALK_CLIENT_ID in _credentials, DINGTALK_WEBHOOK_URL in
_standalone_send -> wrong app id; cron output posted to the default's
robot webhook (URL carries its access_token).
- Telegram: TELEGRAM_WEBHOOK_URL in connect() -> the default's public
webhook URL registered on the secondary bot, mixing update traffic.
Each read now goes through the same scoped reader its sibling secret
already uses (_get_scoped_secret / _startup_env_secret / get_secret with
the UnscopedSecretError fallback), so a scoped miss is empty rather than
the default profile's value; the unscoped default-profile path and
single-profile deployments keep reading os.environ, which there IS the
profile's own value. Teams _credentials now lets extra (per-profile
config.yaml) win over env, matching every other adapter and its own
__init__.
Live repro (/tmp/mux_audit/fix-endpoint-identity/repro.py, secondary
scope "bot2" with the default profile in os.environ): 19 of 24 reads
returned the default's endpoint/identity before; 0 after.
Salvage: SMS from-number fix cherry-picked from #100625 (tests trimmed to
two invariants). Teams identity (#100622) and DingTalk (#100615)
reimplemented on the minimal shape — the Teams PR added a _profile_scoped()
gate to _env_enablement and the DingTalk PR only covered the YAML bridge,
not DINGTALK_CLIENT_ID / DINGTALK_WEBHOOK_URL. Matrix, Home Assistant and
Telegram parts have no prior PR.
Co-authored-by: nftpoetrist <264138787+nftpoetrist@users.noreply.github.com>
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