Feature 16: Google Calendar Sync (#130)

Co-authored-by: orchestrator-agent <20+orchestrator-agent@code.cubecraftcreations.com>

migrations/queries/settings.sql

@@ -106,6 +106,24 @@ ON CONFLICT (id) DO UPDATE SET
 	updated_at = excluded.updated_at
 RETURNING *;
 
+-- name: SetIntegrationsGoogleCalendar :execrows
+-- Sets the chosen calendar; affects no row when nothing is connected.
+UPDATE integrations_google
+SET calendar_id = ?, calendar_name = ?, updated_at = ?
+WHERE id = 1;
+
+-- name: ClearIntegrationsGoogleToken :execrows
+-- Records that Google refuses the stored grant: clears the refresh token and
+-- sets last_sync_error, keeping the chosen calendar. Affects no row when
+-- nothing is connected.
+UPDATE integrations_google
+SET refresh_token_ct = NULL, last_sync_error = ?, updated_at = ?
+WHERE id = 1;
+
+-- name: DeleteIntegrationsGoogle :exec
+DELETE FROM integrations_google
+WHERE id = 1;
+
 -- name: GetChatSettings :one
 -- Returns sql.ErrNoRows until the row exists.
 SELECT * FROM chat_settings