Add iOS PWA meta tags to index.html

Adds apple-mobile-web-app-capable, status-bar-style, and title tags
for proper fullscreen and home screen behavior on older iOS versions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

index.html

@@ -4,6 +4,9 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta name="theme-color" content="#a8d5e8" />
+    <meta name="apple-mobile-web-app-capable" content="yes">
+    <meta name="apple-mobile-web-app-status-bar-style" content="default">
+    <meta name="apple-mobile-web-app-title" content="Black 7">
     <link rel="icon" type="image/x-icon" href="/favicon.ico" />
     <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
     <title>Black 7</title>