feat: add district filter (Hiraa/AsSaffiyah) from static mapping

- ETL writes District column to NocoDB DailySales
- Museums mapped: Hiraa (Revelation, Holy Quraan, Trail, Makkah, VIP)
  AsSaffiyah (Creation Story, Best of Creation)
- District filter added to Dashboard and Comparison (cascades to museum)
- District Performance chart added (desktop + mobile)
- Locale keys added for both EN and AR

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

src/locales/ar.json

@@ -33,10 +33,12 @@
   "filters": {
     "title": "الفلاتر",
     "year": "السنة",
+    "district": "المنطقة",
     "channel": "القناة",
     "museum": "المتحف",
     "quarter": "الربع",
     "allYears": "كل السنوات",
+    "allDistricts": "كل المناطق",
     "allChannels": "جميع القنوات",
     "allMuseums": "كل المتاحف",
     "allQuarters": "كل الأرباع",
@@ -64,6 +66,7 @@
     "visitorsByMuseum": "الزوار حسب المتحف",
     "revenueByMuseum": "الإيرادات حسب المتحف",
     "quarterlyRevenue": "الإيرادات الربعية (سنوي)",
+    "districtPerformance": "أداء المناطق",
     "channelPerformance": "أداء القنوات",
     "captureRateChart": "نسبة الاستقطاب مقابل المعتمرين"
   },
@@ -146,6 +149,7 @@
     "visitors": "الزوار",
     "revenue": "الإيرادات",
     "quarterly": "ربع سنوي",
+    "district": "المنطقة",
     "channel": "القناة",
     "captureRate": "نسبة الاستقطاب"
   },

src/locales/en.json

@@ -33,10 +33,12 @@
   "filters": {
     "title": "Filters",
     "year": "Year",
+    "district": "District",
     "channel": "Channel",
     "museum": "Museum",
     "quarter": "Quarter",
     "allYears": "All Years",
+    "allDistricts": "All Districts",
     "allChannels": "All Channels",
     "allMuseums": "All Museums",
     "allQuarters": "All Quarters",
@@ -64,6 +66,7 @@
     "visitorsByMuseum": "Visitors by Museum",
     "revenueByMuseum": "Revenue by Museum",
     "quarterlyRevenue": "Quarterly Revenue (YoY)",
+    "districtPerformance": "District Performance",
     "channelPerformance": "Channel Performance",
     "captureRateChart": "Capture Rate vs Umrah Pilgrims"
   },
@@ -146,6 +149,7 @@
     "visitors": "Visitors",
     "revenue": "Revenue",
     "quarterly": "Quarterly",
+    "district": "District",
     "channel": "Channel",
     "captureRate": "Capture Rate"
   },