Fix synthetic phase descriptions and close duplicate bug beads

Add fallback description map for Phase 1 ("Seller Interoperability") and
Phase 3 ("Platform & Infrastructure") which have numbered-prefix beads
but no epic records. Closed stale duplicate beads buyer-947, buyer-111,
buyer-4xi (duplicates of buyer-gp3, buyer-tvy, buyer-op8). Regenerated
PROGRESS.md with both fixes applied.

bead: ar-4ff

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: atc964

.beads/PROGRESS.md

@@ -1,10 +1,10 @@
 # Buyer Agent V2 — Progress
 
-**39 open** | **3 in progress** | **48 closed** | **9 blocked** | 90 total
+**39 open** | **0 in progress** | **51 closed** | **9 blocked** | 90 total
 
-`[███████████░░░░░░░░░] 53% (48/90)`
+`[███████████░░░░░░░░░] 57% (51/90)`
 
-## Phase 1
+## Phase 1 — Seller Interoperability
 
 | | ID | Task | Priority | Blockers | Done |
 |---|---|---|---|---|---|
@@ -41,7 +41,7 @@
 | \[x] | buyer-lna | Pacing snapshot storage | P1 | — | 2026-03-19 |
 | \[x] | buyer-lae | Quote normalization logic | P1 | — | 2026-03-19 |
 
-## Phase 3
+## Phase 3 — Platform & Infrastructure
 
 | | ID | Task | Priority | Blockers | Done |
 |---|---|---|---|---|---|
@@ -131,15 +131,15 @@
 | \[ ] | buyer-1g4 | Bug: crewai Flow.kickoff() incompatible with FastAPI async handlers (seller endpoints) | P2 | — |  |
 | \[x] | buyer-mt9 | Bug: crewai listen() API change crashes seller flow imports | P1 | — | 2026-03-19 |
 | \[x] | buyer-pnf | Bug: discover_inventory.py still has inline tier discount math | P3 | — | 2026-03-19 |
-| \[~] | buyer-947 | Bug: from-template missing flight date validation | P2 | — |  |
+| \[x] | buyer-947 | Bug: from-template missing flight date validation | P2 | — | 2026-03-19 |
 | \[x] | buyer-gp3 | Bug: from-template missing flight date validation | P2 | — | 2026-03-19 |
-| \[~] | buyer-111 | Bug: from-template missing_max_cpm returns 422 instead of 400 | P3 | — |  |
+| \[x] | buyer-111 | Bug: from-template missing_max_cpm returns 422 instead of 400 | P3 | — | 2026-03-19 |
 | \[x] | buyer-tvy | Bug: from-template missing_max_cpm returns 422 instead of 400 | P3 | — | 2026-03-19 |
-| \[~] | buyer-4xi | Bug: from-template returns wrong OpenRTB at value for PD deals | P3 | — |  |
+| \[x] | buyer-4xi | Bug: from-template returns wrong OpenRTB at value for PD deals | P3 | — | 2026-03-19 |
 | \[x] | buyer-op8 | Bug: from-template returns wrong OpenRTB at value for PD deals | P3 | — | 2026-03-19 |
 | \[x] | buyer-d9p | Bug: unused generate_deal_id import in unified_client.py | P4 | — | 2026-03-19 |
 | \[ ] | buyer-nz9 | Order Status & Audit API Integration | P2 | — |  |
 | \[x] | buyer-c8e | Task: Run live smoke tests for DealJockey seller endpoints | P1 | — | 2026-03-19 |
 
 ---
-*Last updated: 2026-03-19 18:59 UTC — auto-generated by beads*
+*Last updated: 2026-03-19 19:35 UTC — auto-generated by beads*

.beads/generate_progress.py

@@ -180,11 +180,17 @@ def build_phase_structure(epics, issues):
         phases.append(phase_entry)
 
     # Build synthetic phases for numbered-prefix-only phases
+    # Fallback descriptions for phases that have numbered-prefix beads but
+    # no corresponding epic record in the database.
+    _SYNTHETIC_PHASE_DESCRIPTIONS = {
+        1: "Seller Interoperability",
+        3: "Platform & Infrastructure",
+    }
     for phase_num in sorted(synthetic_phase_nums):
         phases.append({
             "phase": phase_num,
             "label": f"Phase {phase_num}",
-            "desc": "",  # No epic title to extract from
+            "desc": _SYNTHETIC_PHASE_DESCRIPTIONS.get(phase_num, ""),
             "top_epic_id": None,
             "sub_phases": [],
             "deps": [],