fix(atlas): count cities when the address contains a postal code

The visited-cities counter took the comma part right before the country, which
is the postal code in addresses like "Bucharest, 010071, Romania" — stripping
the digits left an empty string, so the city was never counted. Walk back from
the country and use the first part that still has letters after stripping the
postal noise.

Closes #940

server/src/services/atlasService.ts

@@ -376,11 +376,17 @@ export async function getStats(userId: number) {
   for (const place of places) {
     if (place.address) {
       const parts = place.address.split(',').map((s: string) => s.trim()).filter(Boolean);
-      let raw = parts.length >= 2 ? parts[parts.length - 2] : parts[0];
-      if (raw) {
-        const city = raw.replace(/[\d\-\u2212\u3012]+/g, '').trim().toLowerCase();
-        if (city) citySet.add(city);
+      // The last part is the country; the city is usually right before it, but a
+      // full formatted address can have a postal code sitting between them
+      // (e.g. "Bucharest, 010071, Romania"). Walk back from the country and take
+      // the first part that still has letters once digits/postal noise is stripped.
+      const candidates = parts.length >= 2 ? parts.slice(0, -1) : parts;
+      let city = '';
+      for (let i = candidates.length - 1; i >= 0; i--) {
+        const cleaned = candidates[i].replace(/[\d\-\u2212\u3012]+/g, '').trim();
+        if (cleaned) { city = cleaned.toLowerCase(); break; }
       }
+      if (city) citySet.add(city);
     }
   }
   const totalCities = citySet.size;