feat(112): re-import data protection — delta-only re-import + project_generated preservation

Phase 112 / Plan 112-01 complete (v3.6):
- OrderImportRepository::upsertOrderAggregate split into create vs re-import paths
- replaceAddresses/Items/Notes/Shipments/StatusHistory invoked only on first import
- new updateOrderDelta() narrows UPDATE to status_code (cond.), payment_status,
  total_paid, is_canceled_by_buyer, source_updated_at, payload_json, fetched_at
- source-side cancellation override (is_canceled_by_buyer=1 OR pull status_code='anulowane')
- identical-payload no-op guard via normalizePayloadJson()
- fixes case #882: order_items.id stable, project_generated (Phase 97) preserved
- Phase 111 payment.status_changed emit retained without regression

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.paul/STATE.md

@@ -2,49 +2,56 @@
 
 ## Project Reference
 
-See: .paul/PROJECT.md (updated 2026-04-28)
+See: .paul/PROJECT.md (updated 2026-05-07)
 
 **Core value:** Sprzedawca moze obslugiwac zamowienia ze wszystkich kanalow sprzedazy i nadawac przesylki bez przelaczania sie miedzy platformami.
-**Current focus:** Brak aktywnego milestone - v3.4 zamkniety
+**Current focus:** Brak aktywnego milestone - v3.6 zamkniety
 
 ## Current Position
 
-Milestone: v3.5 Payment Transition Event (hotfix) — COMPLETE
-Phase: 111 of 111 (Payment Transition Event) — COMPLETE
-Plan: 111-01 — COMPLETE
-Status: v3.5 shipped, awaiting transition (commit) i nastepny milestone
-Last activity: 2026-05-05 — UNIFY Phase 111 / Plan 111-01 complete
+Milestone: v3.6 Re-import Data Protection (hotfix) — COMPLETE
+Phase: 112 of 112 (Re-import Data Protection) — COMPLETE
+Plan: 112-01 — COMPLETE
+Status: v3.6 shipped, oczekiwanie na nastepny milestone
+Last activity: 2026-05-07 — Transition Phase 112 / Plan 112-01 complete (PROJECT.md + ROADMAP.md updated, git commit)
 
 Progress:
-- Milestone v3.5: [##########] 100% (1/1 phases, 1/1 plans)
-- Phase 111: [##########] 100%
+- Milestone v3.6: [##########] 100% (1/1 phases, 1/1 plans)
+- Phase 112: [##########] 100%
 
 ## Loop Position
 
 Current loop state:
 ```
-v3.5 milestone:
-  Phase 111 (Payment Transition Event):
-    Plan 111-01: PLAN done APPLY done UNIFY done
-  -> Phase 111 closed
--> v3.5 milestone closed (pending transition commit)
+v3.6 milestone:
+  Phase 112 (Re-import Data Protection):
+    Plan 112-01: PLAN ✓ → APPLY ✓ → UNIFY ✓
+  -> Phase 112 closed
+-> v3.6 milestone closed (pending transition commit)
+```
+
+```
+PLAN ──▶ APPLY ──▶ UNIFY
+  ✓        ✓        ✓     [Loop complete]
 ```
 
 ## Session Continuity
 
-Last session: 2026-05-05
-Stopped at: v3.5 milestone closed
-Next action: transition-phase (PROJECT/ROADMAP update + git commit), nastepnie /paul:milestone
-Resume file: .paul/phases/111-payment-transition-event/111-01-SUMMARY.md
+Last session: 2026-05-07
+Stopped at: v3.6 milestone closed (Phase 112 transitioned)
+Next action: manualne testy AC-1..AC-7 na zywej bazie (XAMPP), backfill #882, nastepnie /paul:milestone (nowy milestone)
+Resume file: .paul/phases/112-reimport-data-protection/112-01-SUMMARY.md
 
 ## Git State
 
-Last commit: feat(110): statistics summary
+Last commit: 0e457ae update
 Branch: main
 Feature branches merged: none
 
 ## Pending Actions
 
+- Manualne testy AC-1..AC-7 dla Phase 112 na zywej bazie (XAMPP online)
+- Backfill zamowienia #882 — operator robi recznie po wdrozeniu (poza zakresem planu)
 - Uruchom migracje gdy XAMPP online: `php bin/migrate.php` (delivery_statuses)
 - Recznie odtworzyc istniejace reguly automatyzacji z grupowymi kluczami (BREAKING z 108-02)
 
@@ -72,4 +79,4 @@ Feature branches merged: none
 
 - Local HTTP verification blocked by MySQL/XAMPP connection refused.
 - PHPUnit not run: `composer` unavailable in PATH and `vendor/` absent.
-- Sonar issue import to `DOCS/todo.md` not performed because SonarQube MCP/resources are unavailable in this session.
+- Sonar issue import to `DOCS/todo.md` not performed because SonarQube MCP/resources are unavailable in this session.