Specrew v0.38.0

Feature 184 — Full Antigravity Refocus. BETA (no stable or full-parity claim). Builds on the 0.37.0
(Feature 174 — Hook-Driven Session Bootstrap) base.

Added

• Persistent host coordinator instructions at specrew init (Feature 184): specrew init merges a
  Specrew-owned, delimited coordinator section — carrying the anti-raw-specify.exe workflow guard — into
  each supported host's manifest-declared InstructionsFile (AGENTS.md, CLAUDE.md,
  .github/copilot-instructions.md), preserving user content byte-for-byte; specrew update refreshes it and
  specrew start heals a missing or stale section. Content comes from one packaged fragment in the module
  FileList, and the shared delivery core is host-neutral (manifest-driven, host-coupling-firewall-guarded).
  This closes the last Antigravity parity gap: a cold-launched agent comes up as the governed Specrew
  coordinator instead of a blank session. Real-host-validated for strong models (Opus 4.6, Claude).

Notes

• Weak-model caveat (FR-017): Gemini Flash facilitated the governed workshop competently but then
  self-authorized lifecycle boundaries — the coordinator must be a strong model until a deterministic gate
  (Proposal 180) lands. No full or verified Antigravity-parity claim; release carry-forwards
  (beta-before-stable, MigrateLegacyTopLevelEventMap legacy-upgrade validation, machine-local agy
  evidence) remain open.