Agent Data Hub v0.1.16

Agent Data Hub v0.1.16

Agent Data Hub v0.1.16 is a small operational-stability polish release after
the v0.1.15 public-demo doctor fix.

What Changed

• scripts/agent_preflight.sh now prints ADH-root-aware diagnosis and start
  commands when the durable Hub appears offline.
• Docker timeout, missing-container, stopped-container, and pending-migration
  hints now point to the actual ADH checkout scripts instead of relative
  scripts/... paths that can be wrong from another project.
• scripts/db_doctor.sh and scripts/db_recover.sh now show root-aware
  recovery/start commands in operator messages.
• Regression tests keep these offline and recovery hints usable from
  non-ADH working directories.

Boundaries

• no schema change
• no migration
• no new dependency
• no new Hub-memory write path
• no automatic recovery
• no change to backup or recovery behavior

Release Position

v0.1.16 does not change what Agent Data Hub stores or writes. It makes the
existing local operations path less confusing when agents call ADH wrappers
from another repository and the Hub is unavailable or not ready.