are the alleged violations actionable?
which if any court has jurisdiction?
who if anyone has standing?
what is/are the remedy/remedies?
does the separation of powers apply in any manner?
Anyone who had a reasonable expectation of privacy has a cause of action, e.g. any member of Trump's transition team. Any conspiracy to violate the constitutional or civil rights of the individuals is a violation of the Civil Rights act and action can be brought against the individuals who did this.
which if any court has jurisdiction?
A federal court since Mueller is acting under color of federal law.
who if anyone has standing?
Anyone who has been damaged by Mueller's actions.
what is/are the remedy/remedies?
money
does the separation of powers apply in any manner?
No because the Trump transition is by law a private nonprofit entity, not a constitutional governmental organization.