TestGuard v0.16.0

Automated weekly release — everything merged since v0.15.1.

Changed

• feat: fault-specific defenders, provenance and cost reporting (#184)
• Add advisory AI update guidance and stabilize cleanup regression (#183)
• chore(homebrew): sha256 for v0.15.1 (#182)

Added

• Fault-specific defendedBy overrides, with explicit empty-list discovery,
  evidence selection provenance, per-fault cost reporting and prior-kill
  narrowing warnings (#90). Selection changes invalidate reuse and status;
  admission and changed-file coverage use the actual selected defenders.

Changed

• New AI integrations include permission-aware, once-per-session update advice
  that identifies the actual CLI and requests approval before any upgrade.
  CLI commands and session-start hooks remain offline. Existing customized
  instructions remain untouched; safe manual refresh is documented.

Fixed

• The daemon-cleanup regression test now requires explicit startup and
  post-cleanup release signals instead of assuming a detached process starts
  and writes within fixed sleeps. Timeout and cleanup semantics are unchanged.