pm: update bd-lfak Phase 3 plan — 3 PRs CLEAN, stall enters session 78

PR gastownhall#4022 flipped to DIRTY/CONFLICTING. gastownhall#4053/gastownhall#4054/gastownhall#4055 remain CLEAN.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Jim Wordelman

docs/plans/bd-lfak-preflight-fix-mode.md

@@ -150,6 +150,8 @@ Phase 3 (`--fix` mode): **All implementation and test beads are CLOSED.** B1 (be
 
 **Session 77 note (2026-05-22):** No change. All 4 mergeable PRs confirmed CLEAN: #4022 CLEAN (MERGEABLE), #4053 CLEAN (MERGEABLE), #4054 CLEAN (41/41, MERGEABLE), #4055 CLEAN (MERGEABLE). PR #4028 still DIRTY/CONFLICTING. Stall spans 73 consecutive sessions (5-77). Human merge still required.
 
+**Session 78 note (2026-05-22):** **PR #4022 flipped to DIRTY/CONFLICTING** (was CLEAN in all prior sessions). Now 3 mergeable PRs: #4053 CLEAN (MERGEABLE), #4054 CLEAN (41/41, MERGEABLE), #4055 CLEAN (MERGEABLE). PRs #4022 and #4028 both DIRTY/CONFLICTING. Stall spans 74 consecutive sessions (5-78). Human merge still required.
+
 Remaining: (1) Human merge PR #4054 (and #4022/#4028/#4053/#4055) to gastownhall/beads main. (2) Rebase + submit test PR from tests/be-b6m9-preflight-fix (be-fe4y → beads/builder). (3) Close epic bd-lfak once test PR merges.
 
 Phase 4 (configuration/.beads/preflight.yaml) is deferred — not in scope for this decomposition.