feat: اصلاح سند payment corrections + audit-log & daily P&L views

Backend:
- POST /orders/{id}/payments/corrections (Manager/Owner): void wrong
  payments (marked Refunded, never deleted) and/or record replacements
  atomically; mandatory reason; requires an open register shift; full
  before/after written to the immutable audit trail.
- GET /orders/closed?date= — closed orders of one Iran-calendar day,
  paged, the browsing surface for corrections.
- CalculateExpectedCash now subtracts cash refunds so corrections keep
  the drawer expectation honest.

Dashboard (reports screen now has three tabs):
- عملکرد و سود: existing KPIs/charts + new day-by-day breakdown table
  (orders, revenue, expenses, net profit per Jalali day).
- اصلاح سند: closed-orders browser with payment chips + correction
  dialog (void checkboxes, replacement rows, live balance, reason).
- گزارش عملیات: filterable audit-log viewer (category, Jalali range,
  branch) with expandable structured details.

fa/en/ar translations included. 86 backend tests pass; dashboard tsc clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

web/dashboard/messages/ar.json

@@ -529,7 +529,80 @@
     "csvNetIncome": "صافي الدخل",
     "csvVoids": "الإلغاءات",
     "csvVoidAmount": "مبلغ الإلغاء",
-    "csvExpenses": "المصروفات"
+    "csvExpenses": "المصروفات",
+    "tabs": {
+      "performance": "الأداء والأرباح",
+      "corrections": "تصحيح المستندات",
+      "auditLog": "سجل العمليات"
+    },
+    "dailyBreakdownTitle": "التفصيل اليومي — المبيعات والمصروفات والأرباح",
+    "colDate": "التاريخ",
+    "colOrders": "الطلبات",
+    "colExpenses": "المصروفات",
+    "colNet": "صافي الربح",
+    "corrections": {
+      "date": "التاريخ",
+      "branch": "الفرع",
+      "allBranches": "كل الفروع",
+      "hint": "ابحث عن الطلب ذي الدفعة الخاطئة واضغط «تصحيح».",
+      "loadFailed": "فشل تحميل الطلبات.",
+      "retry": "إعادة المحاولة",
+      "empty": "لا توجد طلبات مغلقة في هذا اليوم.",
+      "colOrder": "الطلب",
+      "colTime": "الوقت",
+      "colStatus": "الحالة",
+      "colTotal": "المبلغ",
+      "colPayments": "الدفعات",
+      "table": "طاولة",
+      "statusPaid": "مسدّد",
+      "statusCancelled": "ملغى",
+      "correctAction": "تصحيح",
+      "prevPage": "السابق",
+      "nextPage": "التالي",
+      "dialogTitle": "تصحيح مستند الدفع",
+      "orderTotal": "مبلغ الطلب",
+      "voidSection": "الدفعات الخاطئة (اختر للإلغاء)",
+      "replacementSection": "الدفعات البديلة",
+      "addReplacement": "إضافة",
+      "noReplacements": "اتركه فارغاً إذا كنت تُلغي فقط.",
+      "method": "طريقة الدفع",
+      "amount": "المبلغ",
+      "removeReplacement": "حذف الصف",
+      "reason": "سبب التصحيح (إلزامي)",
+      "reasonPlaceholder": "مثلاً: سُجّلت نقداً بالخطأ وكان الدفع بالبطاقة",
+      "paidAfter": "إجمالي المدفوع بعد التصحيح",
+      "shortBy": "أقل من مبلغ الطلب بـ",
+      "overBy": "أكثر من مبلغ الطلب بـ",
+      "cancel": "إلغاء",
+      "submit": "تسجيل التصحيح",
+      "saved": "تم تسجيل التصحيح.",
+      "saveFailed": "فشل تسجيل التصحيح."
+    },
+    "auditLog": {
+      "category": "الفئة",
+      "allCategories": "الكل",
+      "categories": {
+        "Payment": "الدفع",
+        "Order": "الطلب",
+        "Register": "الصندوق",
+        "Staff": "الموظفون"
+      },
+      "fromDate": "من",
+      "toDate": "إلى",
+      "branch": "الفرع",
+      "allBranches": "كل الفروع",
+      "loadFailed": "فشل تحميل سجل العمليات.",
+      "retry": "إعادة المحاولة",
+      "empty": "لا يوجد شيء مسجّل.",
+      "colTime": "الوقت",
+      "colCategory": "الفئة",
+      "colActor": "المستخدم",
+      "colSummary": "الوصف",
+      "details": "التفاصيل",
+      "systemActor": "النظام",
+      "prevPage": "السابق",
+      "nextPage": "التالي"
+    }
   },
   "expenses": {
     "title": "المصروفات",