v0.17.0

What's new

• Added a default 60-minute next-session digest to summary output.
• Added next-session-brief, next-session-prs, next-session-minutes, next-session-deferred, quick-unblocks, and watch-only Action outputs.
• Updated the browser preview, README preview image, docs, examples, and social preview around next-session planning.

Validation

• PYTHONPATH=src python -m unittest discover -s tests
• node --check docs/assets/demo.js && node tests/demo_smoke.js
• composite Action run script checked with bash -n
• git diff --check