The masthead wears its deploy stamp

A small yyyy.mm.dd.hh.mm mark beside the edition line, baked in at
build time — and the deploy builds moments before it ships, so the
stamp reads as deploy time.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF

packages/web/src/App.svelte

@@ -1252,6 +1252,7 @@
   <header class="masthead">
     <span class="mast-title">Wiz-War</span>
     <span class="mast-sub">sixth edition</span>
+    <span class="mast-version" title="deployed">{__BUILD_STAMP__}</span>
     <button class="mast-leave" title="preferences" onclick={() => (prefsOpen = !prefsOpen)}>⚙ preferences</button>
     {#if local.active}
       <span class="mast-room">hotseat</span>
@@ -2448,6 +2449,12 @@
     text-transform: uppercase;
     color: #8d8672;
   }
+  .mast-version {
+    font-family: "Courier Prime", monospace;
+    font-size: 0.65rem;
+    letter-spacing: 0.06em;
+    color: #6b6454;
+  }
   .mast-room { margin-left: auto; font-size: 0.85rem; color: #a49c86; }
   .mast-room b { color: #e9e1cb; letter-spacing: 0.12em; }
   .mast-audience { font-size: 0.85rem; color: #a49c86; white-space: nowrap; }

packages/web/src/vite-env.d.ts

@@ -0,0 +1,5 @@
+/// <reference types="vite/client" />
+/// <reference types="svelte" />
+
+/** Build moment, yyyy.mm.dd.hh.mm — injected by vite.config.ts. */
+declare const __BUILD_STAMP__: string;