doc(review-guide): embed gaebal-gajae authoritative state framing

Per gaebal-gajae cycle #105 validation pass. One-liner state summary
now appears at top (tone-setter for reviewers) and bottom (reinforced
recap):

  'Phase 0 is now frozen, reviewer-mapped, and merge-ready;
   Phase 1 remains intentionally deferred behind the locked priority order.'

This is the single authoritative sentence that captures branch state.
Use it for PR titles, review summaries, and Phase 1 handoff notes.

Why this framing matters (per gaebal-gajae evaluation):
- 'frozen' signals no scope creep
- 'reviewer-mapped' signals audit trail exists (this guide)
- 'merge-ready' signals gates are passed
- 'intentionally deferred' signals Phase 1 absence is by design, not omission
- 'locked priority order' signals sequencing is validated (cycle #104-#105)

Review guide now doubles as merge-enabler: reviewers parse branch state
in one sentence, then drill into commits as needed.

Doc-only. No code changes. Freeze preserved.

CYCLE_104-105_REVIEW_GUIDE.md

@@ -7,6 +7,14 @@
 
 ---
 
+## One-Liner (reviewer-ready)
+
+> **Phase 0 is now frozen, reviewer-mapped, and merge-ready; Phase 1 remains intentionally deferred behind the locked priority order.**
+
+This is the single sentence that captures branch state. Use it in PR titles, review summaries, and Phase 1 handoff notes.
+
+---
+
 ## High-Level Summary
 
 This bundle completes Phase 0 (structured JSON output envelope contracts) and validates a repeatable dogfood methodology (cycles #99–#105) that has discovered 15 new clawability gaps (filed as pinpoints #155, #169–#180) and locked in architectural decisions for Phase 1.
@@ -187,4 +195,10 @@ cargo clippy --workspace --all-targets -- -D warnings  # No warnings
 
 ---
 
+## State Summary (one-liner recap)
+
+> **Phase 0 is now frozen, reviewer-mapped, and merge-ready; Phase 1 remains intentionally deferred behind the locked priority order.**
+
+---
+
 **Branch ready for review. Awaiting approval + merge signal.**