Check preconditions for position and matrix for txs

Transactions would allow invalid values like -inf and inf to be
applied, leading to exceptions and test failures. Conduct validity
precondition checks and update API documentation.

Bug: b/421893581
Test: SurfaceControlTest
Flag: EXEMPT, bug fix, error handling
Change-Id: I5ceceacfd27d0602315aa5189d0b3c77c7309837