Bring in the Python 3.14 runtime pins and wake-engine changes while
preserving the staged stable-release gate and review fixes.
The merge has no conflicts. Targeted tests on the existing Python 3.11
dev environment passed: 130 passed, 8 skipped. The lock check passed
with Python 3.14.7. Workflow lint and shell syntax checks also passed.
Full Python 3.14 runtime and native release acceptance remain for CI.