fix(gateway): scope reset banners' session info to the serving profile (#59048 salvage) (#59329)

* fix(gateway): scope reset banners' session info to the serving profile

The auto-reset notice and the manual /reset //new banner both appended
_format_session_info() outside any profile scope, so a multiplexed
gateway advertised the base config's model/provider/context while the
session actually ran on the profile's.

Route both call sites through a new _reset_notice_session_info(source),
which enters _profile_runtime_scope for the source's profile when
gateway.multiplex_profiles is on (mirroring _run_agent's gating), so
_load_gateway_config()/_resolve_gateway_model() resolve the profile's
config.yaml via the existing context-local home override. Single-profile
gateways never enter the scope — behavior unchanged.

Both call sites invoke the helper via asyncio.to_thread: under the
scope, resolution can do blocking work (credential refresh,
context-length HTTP probes) that previously failed fast unscoped and
must not run on the event loop.

Fixes #59003

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* chore(release): map irresi author email for PR #59048 salvage

---------

Co-authored-by: irresi <blueirobin02@gmail.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

scripts/release.py

@@ -52,6 +52,7 @@ AUTHOR_MAP = {
     "AndreasHiltner@users.noreply.github.com": "AndreasHiltner",  # PR #56854 salvage (gateway: route multiplex profile responses through the profile's own adapter — 53-site _adapter_for_source sweep)
     "allenliang2022@users.noreply.github.com": "allenliang2022",  # PR #56932 test coverage folded into #56909 salvage (408 → retryable timeout)
     "m888.braun@hotmail.com": "ManniBr",  # PR #57417 partial salvage (gateway: fail-closed adapter resolution for unregistered secondary profiles)
+    "blueirobin02@gmail.com": "irresi",  # PR #59048 salvage (gateway: scope reset banners' session info to the serving profile; #59003)
     "jashlee+microsoft@microsoft.com": "s905060",  # PR #57943 salvage (photon: auto-reinstall stale sidecar node_modules when lockfile is newer than npm's install marker; #59169)
     "lohinth25@proton.me": "l0h1nth",  # PR #32210 salvage (mattermost: accept leading-space slash commands from mobile clients; #25184)
     "perkintahmaz50@gmail.com": "devatnull",  # PR #58704 salvage (whatsapp: native Baileys polls, clarify-as-poll, location pins, structured quoted replies, PTT/audio split, bridge_helpers extraction)