新增個人 icon (SVG 與 PNG 512x512) 並登記於 README

icon.svg

@@ -0,0 +1,30 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="512" height="512">
+  <defs>
+    <linearGradient id="bg" x1="0" y1="0" x2="1" y2="1">
+      <stop offset="0" stop-color="#0b1226"/>
+      <stop offset="1" stop-color="#1a1440"/>
+    </linearGradient>
+    <linearGradient id="spec" x1="0" y1="1" x2="1" y2="0">
+      <stop offset="0" stop-color="#fbbf24"/>
+      <stop offset="0.28" stop-color="#34d399"/>
+      <stop offset="0.52" stop-color="#22d3ee"/>
+      <stop offset="0.76" stop-color="#60a5fa"/>
+      <stop offset="1" stop-color="#a78bfa"/>
+    </linearGradient>
+    <radialGradient id="glow" cx="0.5" cy="0.5" r="0.5">
+      <stop offset="0" stop-color="#22d3ee" stop-opacity="0.5"/>
+      <stop offset="0.55" stop-color="#22d3ee" stop-opacity="0.12"/>
+      <stop offset="1" stop-color="#22d3ee" stop-opacity="0"/>
+    </radialGradient>
+  </defs>
+  <rect width="512" height="512" rx="112" fill="url(#bg)"/>
+  <circle cx="256" cy="256" r="204" fill="url(#glow)"/>
+  <circle cx="256" cy="256" r="196" fill="none" stroke="#22d3ee" stroke-width="3" opacity="0.25"/>
+  <g fill="none" stroke="url(#spec)" stroke-linecap="round">
+    <circle cx="256" cy="256" r="166" stroke-width="16" stroke-dasharray="140 96" stroke-dashoffset="24"/>
+    <circle cx="256" cy="256" r="126" stroke-width="13" stroke-dasharray="104 72" stroke-dashoffset="70"/>
+    <circle cx="256" cy="256" r="90" stroke-width="11" stroke-dasharray="76 48" stroke-dashoffset="12"/>
+  </g>
+  <circle cx="256" cy="256" r="46" fill="#0b1226" stroke="#22d3ee" stroke-width="7"/>
+  <circle cx="256" cy="256" r="15" fill="#e0f2fe"/>
+</svg>