feat(screens): retake the two frames a signed-in character changes

The org lead signed a character into the shard by hand — the step automation
could not reach — so shard-status and app-shard were retaken. The shard page
now reads 1 player online in Britain, and the app's card agrees.

Two things worth noticing in the retake. Presence reaches the public page as
counts and regions rather than names, which is the visibility framework working
unprompted. And the guild board's online column did not move: it refreshes only
when a guild's signature changes, which is the stale-roster defect wearing a
different hat.

A sixth defect, visible in the shipped phone capture: the app interpolates a
count into a fixed plural and says "1 players online". Raised, not fixed —
it wants a plurals resource in the app.

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/home/WhatItLooksLike.astro

@@ -22,9 +22,9 @@ import Screenshot from '../Screenshot.astro';
   <p class="eyebrow">What it looks like</p>
   <h2>The other end of that diagram</h2>
   <p class="prose looks__lede">
-    A demo deployment with a real shard behind it. The gold supply, the uptime and the online
-    count are read from the game server over the bridge — none of it is typed in, and the page
-    is honest about a quiet realm.
+    A demo deployment with a real shard behind it. The gold supply, the state of the link and
+    the player online in Britain are all read from the game server over the bridge. None of it
+    is typed in, and none of it is a mock-up.
   </p>
 
   <Screenshot id="shard-status" />

src/data/screens.mjs

@@ -71,9 +71,9 @@ export const screens = [
     id: 'shard-status',
     route: '/uo/shard',
     admin: false,
-    alt: 'The shard page of a Runic Gateway site, showing the shard online, its gold supply, the state of the shard link and how many players are online.',
+    alt: 'The shard page of a Runic Gateway site, showing the shard online, its gold supply, the state of the shard link, and one player online in Britain.',
     caption:
-      'The shard console. Every number on it came over the bridge from a running game server — nothing here is stored by hand.',
+      'The shard console. Every number on it came over the bridge from a running game server — including the player who was standing in Britain when this was taken.',
     family: 'web',
   },
   {
@@ -187,9 +187,9 @@ export const screens = [
     id: 'app-shard',
     route: '/shard',
     admin: false,
-    alt: "The app's shard screen, showing the shard online with its gold supply, links to champion spawns, guilds, governors and falling houses, and a live activity feed.",
+    alt: "The app's shard screen, showing the shard online with one player and its gold supply, links to champion spawns, guilds, governors and falling houses, and a live activity feed.",
     caption:
-      'The same bridge feeds the phone. The activity list is live — those two houses entered their final decay stage while this was open.',
+      'The same bridge feeds the phone: the same player online, and an activity list that is live — those houses entered their final decay stage while it was open.',
     family: 'phone',
   },
   {