* fix: tag Slack threads with stored identity so they surface in web
process_slack_mention gated the run on mapped_login (resolved from the stable
Slack user id), but upsert_agent_thread_owner_metadata independently re-resolved
the GitHub login from the Slack profile email. When that email differs from the
user's mapping email (e.g. a personal vs work address), the lookup returned None,
so github_login was never stamped on the thread and the thread never surfaced in
the web Agents UI (which searches by github_login / triggering_user_email).
Resolve the GitHub user from the store via the Slack id, pass that login through
to the owner metadata, and use the mapping's stored work email (falling back to
the Slack profile email for unmapped users) for both the run config and the
thread tagging, so Slack-started threads reliably appear in web.
* fix: stamp github_login on Slack threads so they surface in web
process_slack_mention gated the run on mapped_login (resolved from the stable
Slack user id) but upsert_agent_thread_owner_metadata re-resolved the login from
the Slack profile email; when that email isn't the user's mapping email the
lookup returns None and github_login is never stamped, so the thread is invisible
in the web Agents UI (which searches by github_login / triggering_user_email).
Pass the already-resolved mapped_login through to the owner metadata. The
dashboard match keys on the stable GitHub login, so this is sufficient; the
triggering email stays the live Slack profile value.
* fix: preserve Slack email during account mapping
* fix: require Slack OIDC for email mappings
* chore: format Slack OIDC mapping cleanup
When sending a message to a thread from the Agents chat UI, the run used
the OAuth profile email (which can be a personal account that isn't an org
member). For Slack-originated threads resumed from the UI, auth routes
through the email-based path and fails ("Could not find a LangSmith account").
Resolve the run email via the GitHub->email mapping first, falling back to
the profile email only when no mapping exists, matching the github-source
auth path.
