更新readme和icon

webui/index.html

@@ -24,9 +24,8 @@
   <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
   <meta name="apple-mobile-web-app-title" content="DS2API" />
 
-  <!-- Favicon - using data URI for orange-yellow gradient icon -->
-  <link rel="icon" type="image/svg+xml"
-    href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' stop-color='%23f59e0b'/%3E%3Cstop offset='100%25' stop-color='%23ef4444'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect rx='20' width='100' height='100' fill='url(%23g)'/%3E%3Ctext x='50' y='68' font-family='Arial,sans-serif' font-size='48' font-weight='bold' fill='white' text-anchor='middle'%3EDS%3C/text%3E%3C/svg%3E" />
+  <!-- Favicon -->
+  <link rel="icon" type="image/svg+xml" href="/ds2api-favicon.svg" />
 
   <!-- Fonts -->
   <link rel="preconnect" href="https://fonts.googleapis.com">

webui/public/ds2api-favicon.svg

@@ -0,0 +1,20 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" role="img" aria-label="DS2API icon">
+  <defs>
+    <linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#f59e0b" />
+      <stop offset="100%" stop-color="#ef4444" />
+    </linearGradient>
+  </defs>
+  <rect width="100" height="100" rx="20" fill="url(#g)" />
+  <text
+    x="50"
+    y="68"
+    text-anchor="middle"
+    font-family="Arial,sans-serif"
+    font-size="48"
+    font-weight="700"
+    fill="#ffffff"
+  >
+    DS
+  </text>
+</svg>