Agent Data Hub v0.1.15

Agent Data Hub v0.1.15

Agent Data Hub v0.1.15 is a small public-demo reliability release after the
v0.1.14 seed-boundary polish.

What Changed

• scripts/db_doctor.sh --public-demo now diagnoses the same isolated demo
  database used by scripts/first_run_demo.sh.
• The public quickstart and first-run walkthrough now point demo users to that
  demo-aware doctor command instead of the configured operator doctor path.
• Regression tests keep the public demo troubleshooting path separate from the
  maintainer-local operator database.

Boundaries

• no schema change
• no migration
• no new dependency
• no new Hub-memory write path
• no hosted service
• no automatic recovery
• no change to the public first-run command

Release Position

v0.1.15 keeps the same technical-preview scope as v0.1.14. It does not add a
new feature; it closes a first-run clarity gap found by a clean-clone test:
public demo troubleshooting now targets the public demo database explicitly.