Server locations: no user threshold

The public projection of a server's place showed only the country for
servers reporting fewer than 10 users. The owner never decided that
threshold: every located server now shows its city, coordinates (0.1°)
and network, and a CDN-fronted one still shows only its CDN, since the
address reached is the CDN's edge. Statistics:PublicCityMinUsers is
gone; the ROADMAP decision on server locations, CLAUDE.md and the
/stargazing explainer are corrected.

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

PrivaPub/Web/Pages/Stargazing.cshtml

@@ -1,4 +1,4 @@
-@page "/stargazing"
+@page "/stargazing"
 @model PrivaPub.Web.Pages.StargazingModel
 @{
 	ViewData["Title"] = "Stargazing";
@@ -13,8 +13,8 @@
 	never accounts: what kind of software a server runs, what it exchanges with us, and how reliably. Distinct accounts are
 	only counted, through a key that is destroyed at the end of each day.</p>
 	<p>A server we exchange activities with is described once a week, from its public NodeInfo and, when it has one, its
-	Mastodon instance API. Its location comes from the address we reached, looked up in an offline database: only the
-	country is shown publicly for small servers, and only the CDN for servers behind one.</p>
+	Mastodon instance API. Its location comes from the address we reached, looked up in an offline database, and is shown
+	to the city; for a server behind a CDN, only the CDN is shown, since the address is the CDN's.</p>
 	@if (Model.GeoSource is { } geo)
 	{
 		<p>Locations come from <a href="https://db-ip.com" rel="nofollow noopener">@geo</a>, licensed under