Add Django site, Docker packaging, and beta/prod Gitea deploys.

Unignore site/ (was blocked by mkdocs /site rule), add compose/Docker/uv tooling, and split deploys so push to main goes to beta while prod stays manual.

site/contacts/urls.py

@@ -0,0 +1,11 @@
+from django.urls import path
+
+from contacts import views
+
+app_name = "contacts"
+
+urlpatterns = [
+    path("", views.contact_list, name="list"),
+    path("import/", views.contact_import, name="import"),
+    path("<uuid:pk>/", views.contact_detail, name="detail"),
+]