fix(reports): localize and group exported income values

apps/reports/services/export_i18n.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 from dataclasses import dataclass
 from datetime import date
+from decimal import Decimal, InvalidOperation
 from pathlib import Path
 from typing import Iterable
 
@@ -89,6 +90,16 @@ PERIOD_LABELS = {
     },
 }
 
+CURRENCY_LABELS = {
+    "USD": {"en": "USD", "fa": "دلار آمریکا"},
+    "EUR": {"en": "EUR", "fa": "یورو"},
+    "GBP": {"en": "GBP", "fa": "پوند"},
+    "IRR": {"en": "IRR", "fa": "ریال"},
+    "IRT": {"en": "IRT", "fa": "تومان"},
+    "AED": {"en": "AED", "fa": "درهم"},
+    "TRY": {"en": "TRY", "fa": "لیر"},
+}
+
 
 @dataclass(frozen=True)
 class ExportLocale:
@@ -122,14 +133,40 @@ class ExportLocale:
     def format_duration(self, value: str, *, ascii_digits: bool = False) -> str:
         return self.format_number(value, ascii_digits=ascii_digits)
 
+    def format_amount(self, value: object, *, ascii_digits: bool = False) -> str:
+        raw = str(value).strip()
+        if not raw:
+            return raw
+        try:
+            decimal_value = Decimal(raw)
+        except InvalidOperation:
+            return self.format_number(raw, ascii_digits=ascii_digits)
+
+        sign = "-" if decimal_value < 0 else ""
+        unsigned = abs(decimal_value)
+        normalized = format(unsigned, "f")
+        integer_part, _, fractional_part = normalized.partition(".")
+        grouped_integer = f"{int(integer_part):,}"
+        formatted = f"{sign}{grouped_integer}"
+        if fractional_part:
+            trimmed_fraction = fractional_part.rstrip("0")
+            if trimmed_fraction:
+                formatted = f"{formatted}.{trimmed_fraction}"
+        return self.format_number(formatted, ascii_digits=ascii_digits)
+
     def format_money_label(self, income_totals: list[dict], *, ascii_digits: bool = False) -> str:
         if not income_totals:
             return "-"
         parts = []
         for item in income_totals:
-            parts.append(f"{self.format_number(item['amount'], ascii_digits=ascii_digits)} {item['currency']}")
+            currency = self.currency_label(item["currency"])
+            parts.append(f"{self.format_amount(item['amount'], ascii_digits=ascii_digits)} {currency}")
         return " | ".join(parts)
 
+    def currency_label(self, code: str | None) -> str:
+        raw = str(code or "").upper()
+        return CURRENCY_LABELS.get(raw, {}).get(self.language, raw)
+
     def shape(self, text: object) -> str:
         raw = str(text)
         if not any(start <= ord(char) <= end for char in raw for start, end in ARABIC_RANGES):