feat(98-order-imported-first-only): gate order.imported na pierwszy import + backfill statusow

- AllegroOrderImportService / ShopproOrdersSyncService: trigger order.imported tylko gdy $wasCreated
- bin/backfill_shipped_status_98.php: jednorazowy CLI, w_realizacji + shipment -> wyslane (przez OrdersRepository::updateOrderStatus)
- backfill: 4 zamowienia naprawione (#275, #340, #396, #422), idempotentny

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

.paul/STATE.md

@@ -10,14 +10,14 @@ See: .paul/PROJECT.md (updated 2026-04-12)
 ## Current Position
 
 Milestone: v3.0 Mobile Responsive - In progress
-Phase: 97 (Project Generation) — Complete
-Plan: 97-01 unified
+Phase: 98 (Order Imported First Only) — Complete
+Plan: 98-01 unified
 Status: Loop closed, ready for next PLAN
-Last activity: 2026-04-12 — Unified phase 97
+Last activity: 2026-04-13 — Unified phase 98
 
 Progress:
 - Milestone: [#########.] ~95%
-- Phase 97: [##########] 100%
+- Phase 98: [##########] 100%
 
 ## Loop Position
 
@@ -29,7 +29,7 @@ PLAN ──▶ APPLY ──▶ UNIFY
 
 ## Session Continuity
 
-Last session: 2026-04-12
-Stopped at: Phase 97 unified
+Last session: 2026-04-13
+Stopped at: Phase 98 unified
 Next action: Plan next phase or pause
-Resume file: .paul/phases/97-project-generation/97-01-SUMMARY.md
+Resume file: .paul/phases/98-order-imported-first-only/98-01-SUMMARY.md