StackKits v0.15.3

Added

• Architecture v2 catalog projections now expose runtime listeners for
  product-owned application delivery without moving lifecycle authority out of
  StackKits.

Fixed

• Suffix-free numeric v0.x releases publish as normal GitHub releases and
  advance releases/latest.

Full Changelog: v0.15.1...v0.15.3

Built from ef78b652f840a1023fb9f05d192e81f0f4cc05a1.