Profile and post pages, NodeInfo 2.1, and FEDERATION.md

/@user and /@user/{id} are Razor pages showing an avatar's or community's
public and unlisted posts: no scripts, a strict CSP, no-referrer, noindex,
and an alternate link to the ActivityPub document. A client asking them
for activity+json is redirected to the actor or note, and the actor and
note redirect browsers here.

NodeInfo answers 2.1 as well as 2.0 (repository, homepage, a link to
FEDERATION.md) and counts only public local posts.

FEDERATION.md (FEP-67ff) lists the protocols, FEPs, route names,
activities and the security rules a peer will notice.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB

PrivaPub/Web/Pages/Profile.cshtml

@@ -0,0 +1,36 @@
+@page "/@{user}"
+@model PrivaPub.Web.Pages.ProfileModel
+@{
+	ViewData["Title"] = $"{Model.Actor.Name} (@{Model.Actor.Handle})";
+	ViewData["Alternate"] = Model.Actor.Uri;
+}
+<header>
+	<h1>@Model.Actor.Name</h1>
+	<div class="handle">@@@Model.Actor.Handle</div>
+</header>
+<div class="bio">@Html.Raw(Model.BiographyHtml)</div>
+@if (Model.Actor.Fields.Count > 0)
+{
+	<dl class="fields">
+		@foreach (var field in Model.Actor.Fields)
+		{
+			<dt>@field.Key</dt>
+			<dd>@if (Uri.TryCreate(field.Value, UriKind.Absolute, out var link) && link.Scheme is "https" or "http")
+				{
+					<a href="@field.Value" rel="nofollow noopener noreferrer me">@field.Value</a>
+				}
+				else
+				{
+					@field.Value
+				}</dd>
+		}
+	</dl>
+}
+@foreach (var post in Model.Posts)
+{
+	<partial name="_Post" model="post" />
+}
+@if (Model.Posts.Count == 0)
+{
+	<p class="meta">Nothing public yet.</p>
+}