Third docs slice shipped alongside the TeamsSummaryWriter code so
operators can configure outbound summary delivery the moment this
PR lands.
- website/docs/user-guide/messaging/teams.md: new 'Meeting Summary
Delivery (Teams Meeting Pipeline)' section under Features,
explaining that the existing teams adapter handles pipeline
outbound (not a separate adapter surface), with a config-snippet
example for graph and incoming_webhook modes, a mode-choice
trade-off table, and a note that settings are inert when the
teams_pipeline plugin is disabled.
- website/docs/reference/environment-variables.md: new Teams Meeting
Summary Delivery subsection documenting TEAMS_DELIVERY_MODE,
TEAMS_INCOMING_WEBHOOK_URL, TEAMS_GRAPH_ACCESS_TOKEN, TEAMS_TEAM_ID,
TEAMS_CHANNEL_ID, TEAMS_CHAT_ID with cross-link to the Teams setup
page section.
Verified via npm run build: pages route correctly, no new warnings
or errors.