Adds listGroups() to browse AD groups/OUs under base DN, and
collectSearchEntries() to restrict syncUsersForTenant to members of
selected groups or users under selected OUs. Group DNs are matched
via escaped memberOf clauses (RFC 4515); OU DNs become extra search
bases. Empty groupFilterDns keeps the original single-base-DN search
unchanged. Controller sync endpoint and the sync scheduler both pass
groupFilterDns through so manual and scheduled syncs honor it.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
schalli
04fc33fc2a