The AccessSource.oauth2Scopes field duplicated knowledge that
naturally belongs on the Connector object that AccessSource
already exposes via its connector field. Move it to Connector so
every type that holds a connector (AccessSource, SCIMBridge, etc.)
can reach the scopes through the connector relationship.
AccessSourceRow now queries accessSource.connector { oauth2Scopes }
in its reconnect flow.
Signed-off-by: Aurélien Sibiril <81782+aureliensibiril@users.noreply.github.com>
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