feat: add configurable people maps

Add independent map profiles, offline city lookup, bundled world artwork
and collision-free portrait placement with optional person details.

Deploy with updated requirements, migrations 0029-0031 and collectstatic.

apps/pages/maps.py

@@ -0,0 +1,35 @@
+"""Offline city resolution. No requests or personal data leave the server."""
+from functools import lru_cache
+import unicodedata
+
+from django.core.exceptions import ValidationError
+
+
+def normalize(value):
+    return ''.join(c for c in unicodedata.normalize('NFKD', value.casefold().strip()) if not unicodedata.combining(c))
+
+
+@lru_cache(maxsize=1)
+def gazetteer():
+    import geonamescache
+    return geonamescache.GeonamesCache()
+
+
+def resolve_city(country, city):
+    data = gazetteer()
+    country_key = normalize(country)
+    codes = [c['iso'] for c in data.get_countries().values() if country_key in (normalize(c['name']), c['iso'].lower(), c['iso3'].lower())]
+    if not codes:
+        raise ValidationError({'country': 'Enter a country name or ISO code, e.g. Canada or CA.'})
+    city_key = normalize(city)
+    country_cities = [c for c in data.get_cities().values() if c['countrycode'] in codes]
+    # Prefer the city's canonical name over another town's historical aliases.
+    # E.g. Tehran is also listed as an alias of Tiran in GeoNames.
+    matches = [c for c in country_cities if normalize(c['name']) == city_key]
+    if not matches:
+        matches = [c for c in country_cities if city_key in {
+            normalize(alias) for alias in c.get('alternatenames', [])
+        }]
+    if len(matches) != 1:
+        raise ValidationError({'city': 'City not found or ambiguous. Use coordinates for small towns or cities with the same name.'})
+    return matches[0]['latitude'], matches[0]['longitude']