v0.7.2

v0.7.2

Fixed

• crypto partial-decrypt crashed on a relative output path. It aborted with no
  message on stdout or stderr, which looked like broken threshold decryption but was
  a directory-creation error after the cryptography had already succeeded. Anyone
  driving the CLI directly hit this on the last step of a run.

• Errors died silently. The CLI had no top-level exception handler, so any
  failure aborted with the message discarded. Failures now say what went wrong.

• next_step gave wrong guidance for solo self-tests. It told a solo tester to
  wait on a counterparty who does not exist, listed only half their inputs, and
  reported the wrong stage while its own warning said no keys existed.

• Rule-based cross-match self-tests could never finish (platform side): rotation
  key setup waited for a second party that an internal grant does not have.

Added

• examples/SELF-TEST.md: how to self-test every function, which evaluation keys
  each needs, and the expected answer for each fixture. All eight verified against
  the platform.