chore: sync code and project files

assets/stickers_builtin/bubble_buy.svg

@@ -0,0 +1,19 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="512" height="512" viewBox="0 0 512 512">
+  <defs>
+    <linearGradient id="g" x1="0" y1="0" x2="1" y2="1">
+      <stop offset="0" stop-color="#FFD700"/>
+      <stop offset="1" stop-color="#FF3D00"/>
+    </linearGradient>
+    <filter id="s" x="-25%" y="-25%" width="150%" height="150%">
+      <feDropShadow dx="0" dy="10" stdDeviation="12" flood-color="#000" flood-opacity="0.35"/>
+    </filter>
+  </defs>
+  <g filter="url(#s)">
+    <path d="M92 176c0-44 36-80 80-80h168c92 0 166 74 166 166s-74 166-166 166H258l-70 60 18-60h-34c-44 0-80-36-80-80V176z" fill="#111" opacity="0.18"/>
+    <path d="M92 160c0-44 36-80 80-80h168c92 0 166 74 166 166s-74 166-166 166H258l-70 60 18-60h-34c-44 0-80-36-80-80V160z" fill="url(#g)"/>
+    <text x="296" y="292" font-size="84" text-anchor="middle" font-family="Arial Black, Arial" fill="#111">买它</text>
+  </g>
+</svg>
+
+
+