Point something at the handle the project already owns

@podiumstack was registered and then referenced nowhere: the site emitted
twitter:card and twitter:image but no twitter:site, so every shared link
rendered an unattributed card, and the footer offered no way to follow the
project at all. Adds twitter:site, twitter:creator and og:site_name, and
puts the handle in the footer beside GitHub, with the URL in consts.ts
where that file's header comment says every outbound link belongs.

Also corrects STATS.tests from 714 to 739, which is what the suite reports
now. The comment above STATS says to regenerate rather than estimate; the
other counts are left alone because they were not measured here.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DqxMg5dMxq99sTo5VCA25Y

Author: claude

www/src/consts.ts

@@ -18,6 +18,14 @@ export const API_DOC_URL = `${GITHUB_URL}/blob/main/docs/domain/09-api-and-integ
 export const LICENSE_URL = `${GITHUB_URL}/blob/main/LICENSE`;
 export const ISSUES_URL = `${GITHUB_URL}/issues`;
 
+/**
+ * `podiumstack` is the one qualifier the product uses wherever the bare word is
+ * taken — this domain, the npm scope, and this handle. There is no second one,
+ * so if the handle ever moves, these two lines move with it and nothing else.
+ */
+export const SOCIAL_HANDLE = "@podiumstack";
+export const SOCIAL_URL = "https://x.com/podiumstack";
+
 export const SITE_TITLE = "Podium";
 export const SITE_DESCRIPTION =
   "Run your conference program without the spreadsheets. Podium handles the call for proposals, review, sponsor sessions, speaker onboarding and the schedule on your website. Open source, and it runs on infrastructure you own.";
@@ -53,7 +61,7 @@ export const NAV = [
  *                  workers/api/src | sort -u | wc -l   (method + path pairs)
  */
 export const STATS = {
-  tests: 714,
+  tests: 739,
   events: 136,
   invariants: 158,
   scopes: 22,

www/src/layouts/Base.astro

@@ -11,6 +11,8 @@ import {
   SIGN_IN_URL,
   SITE_DESCRIPTION,
   SITE_TITLE,
+  SOCIAL_HANDLE,
+  SOCIAL_URL,
 } from "../consts";
 
 interface Props {
@@ -61,13 +63,20 @@ const isCurrent = (href: string) => path === href || path.startsWith(`${href}/`)
     <meta name="theme-color" content="#6366F1" />
 
     <meta property="og:type" content="website" />
+    <meta property="og:site_name" content={SITE_TITLE} />
     <meta property="og:title" content={pageTitle} />
     <meta property="og:description" content={description} />
     {!noindex && <meta property="og:url" content={canonical} />}
     <meta property="og:image" content={ogImage} />
     <meta name="twitter:card" content="summary_large_image" />
     <meta name="twitter:image" content={ogImage} />
 
+    {/* Both tags carry the same handle: the account is the project, and there is
+        no separate author to credit. Unlike og:url these attribute the card
+        rather than address the page, so a noindex page still names its source. */}
+    <meta name="twitter:site" content={SOCIAL_HANDLE} />
+    <meta name="twitter:creator" content={SOCIAL_HANDLE} />
+
     {/* Arms the scroll reveal. This has to run before first paint, or the
         sections paint, then hide, then fade back in — a flicker worse than no
         animation. It is deliberately the only thing here: the observer that
@@ -161,6 +170,7 @@ const isCurrent = (href: string) => path === href || path.startsWith(`${href}/`)
           <div>
             <h2>Source</h2>
             <a href={GITHUB_URL}>GitHub</a>
+            <a href={SOCIAL_URL}>{SOCIAL_HANDLE} on X</a>
             <a href={DOMAIN_MODEL_URL}>Domain model</a>
             <a href={IMPLEMENTATION_URL}>Implementation notes</a>
             <a href={LICENSE_URL}>MIT licence</a>