Where a server is, on the public instance API

/api/privapub/v1/instances/:host gains `geo`, the public projection of a
server's place already decided for public server locations
(PublicGeo.Project): city, coordinates and network for servers reporting
at least 10 users and not behind a CDN, the country otherwise, the CDN's
name for a CDN-fronted one, with DB-IP's attribution. `?host[]=`
answers up to 40 servers at once, and this server describes itself:
its host's address located once a day (SelfLocation), or
Statistics:Geo:Self when the owner sets it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

PrivaPub/Infrastructure/Statistics/StatisticsOptions.cs

@@ -1,4 +1,4 @@
-namespace PrivaPub.Infrastructure.Statistics
+namespace PrivaPub.Infrastructure.Statistics
 {
 	public class StatisticsOptions
 	{
@@ -16,6 +16,16 @@ namespace PrivaPub.Infrastructure.Statistics
 		public string DownloadBase { get; set; } = "https://download.db-ip.com/free";
 		public long MaxDownloadBytes { get; set; } = 300L * 1024 * 1024;
 		public long MaxDatabaseBytes { get; set; } = 1024L * 1024 * 1024;
+		//this server's place, when locating its own address would be wrong (behind a proxy or a CDN): the owner's call
+		public SelfGeoOptions Self { get; set; } = new();
+	}
+
+	public class SelfGeoOptions
+	{
+		public double? Latitude { get; set; }
+		public double? Longitude { get; set; }
+		public string City { get; set; }
+		public string Country { get; set; }
 	}
 
 	//owner decision: off by default (on in production since 2026-10-04); when on, one server a minute, each at most weekly, at most MaxHosts servers