feat: fetch version.json on mount, show short SHA + commit link in footer

client/src/App.jsx

@@ -42,8 +42,13 @@ function GiteaIcon() {
   );
 }
 
-function AppFooter() {
+function AppFooter({ version }) {
   const year = new Date().getFullYear();
+  const sha  = version?.shortSha || null;
+  const built = version?.buildTime
+    ? new Date(version.buildTime).toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric' })
+    : null;
+
   return (
     <>
       <style>{`
@@ -53,13 +58,27 @@ function AppFooter() {
         }
       `}</style>
       <footer style={sf.footer}>
-        <span style={sf.copy}>© {year} Jason Stedwell</span>
+        <span style={sf.copy}>&copy; {year} Jason Stedwell</span>
-        <span style={sf.sep}>·</span>
+        <span style={sf.sep}>&middot;</span>
         <DevTicker />
-        <span style={sf.sep}>·</span>
+        <span style={sf.sep}>&middot;</span>
         <a href={REPO_URL} target="_blank" rel="noopener noreferrer" style={sf.link}>
           <GiteaIcon /> cpas
         </a>
+        {sha && sha !== 'dev' && (
+          <>
+            <span style={sf.sep}>&middot;</span>
+            <a
+              href={`${REPO_URL}/commit/${version.sha}`}
+              target="_blank"
+              rel="noopener noreferrer"
+              style={sf.link}
+              title={built ? `Built ${built}` : 'View commit'}
+            >
+              {sha}
+            </a>
+          </>
+        )}
       </footer>
     </>
   );
@@ -129,6 +148,14 @@ const sf = {
 export default function App() {
   const [tab,        setTab]        = useState('dashboard');
   const [showReadme, setShowReadme] = useState(false);
+  const [version,    setVersion]    = useState(null);
+
+  useEffect(() => {
+    fetch('/version.json')
+      .then(r => r.ok ? r.json() : null)
+      .then(v => { if (v) setVersion(v); })
+      .catch(() => {});
+  }, []);
 
   return (
     <ToastProvider>
@@ -156,7 +183,7 @@ export default function App() {
           </div>
         </div>
 
-        <AppFooter />
+        <AppFooter version={version} />
 
         {showReadme && <ReadmeModal onClose={() => setShowReadme(false)} />}
       </div>