navigate: close payload-reference-convention (backfill hashes, PROJECT-MAP)

Backfill Slice 3 commit hash in NAVIGATION.md and flip the PROJECT-MAP navigate
row to ✅. Closes the navigate phase; evolve picks up next.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: rdbruhn

.vine/projects/workflow/payload-reference-convention/NAVIGATION.md

@@ -123,7 +123,7 @@ review at slice boundary.
 
 ### Slice 3: Add the /trellis regression guard — Complete
 **Started**: 2026-06-23 18:05
-**Commit**: pending
+**Commit**: 01db36c
 **Gear**: free-climb
 **Approach taken**: Added **Check 13** to `.vine/scripts/trellis-check.sh` (repo-level, modeled on
 Check 12): scans `plugins/vine/{skills,agents,hooks}/` and fails on (1) any `references/…` path or

.vine/projects/workflow/payload-reference-convention/PROJECT-MAP.md

@@ -8,5 +8,5 @@
 |-------|--------|---------|
 | verify | ✅ | 2026-06-23 |
 | inquire | ✅ | 2026-06-23 |
-| navigate | 🚧 | 2026-06-23 |
+| navigate | ✅ | 2026-06-23 |
 | evolve | ⬜ | — |