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/forms.py

@@ -2,7 +2,7 @@ from django import forms
 from django.core.exceptions import ValidationError
 
 from .contact_uploads import validate_contact_attachments
-from .models import ContactSubmission
+from .models import ContactSubmission, MapMembership
 
 
 class ContactForm(forms.ModelForm):
@@ -39,3 +39,16 @@ class ContactForm(forms.ModelForm):
             self.add_error("attachments", exc)
             cleaned_data["attachments"] = []
         return cleaned_data
+
+
+class MapMembershipAdminForm(forms.ModelForm):
+    class Meta:
+        model = MapMembership
+        fields = "__all__"
+        help_texts = {
+            "location_method": "City mode calculates coordinates on save. Choose Coordinates to set latitude and longitude yourself.",
+            "country": "For city lookup, enter an English country name or ISO code, e.g. Canada / CA. Optional location label in Coordinates mode.",
+            "city": "Required in city mode. Unknown, small or ambiguous towns can be placed using Coordinates mode instead.",
+            "latitude": "Coordinates mode: -90 to 90. In city mode this value is calculated from the country and city on save.",
+            "longitude": "Coordinates mode: -180 to 180. In city mode this value is calculated from the country and city on save.",
+        }