style(h5): HomeToolIcon 全局放大约 39%

统一按 prop×1.392 显示，并同步首页九宫格容器，避免裁切。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/user-h5/src/components/HomeToolIcon.vue

@@ -239,7 +239,8 @@ const props = withDefaults(
 
 const uid = useId().replace(/:/g, '')
 const f = computed(() => `url(#${uid}s)`)
-const sizePx = computed(() => `${props.size}px`)
+/** Display size = prop × 1.392 (cumulative icon scale). */
+const sizePx = computed(() => `${Math.round(props.size * 1.392)}px`)
 function g(key: string) {
   return `url(#${uid}${key})`
 }

apps/user-h5/src/components/home/HomeToolGrid.vue

@@ -79,7 +79,7 @@ defineEmits<{ track: [label: string] }>()
   gap: 2px;
 }
 .tool-item {
-  width: 74px;
+  width: 88px;
   display: flex;
   flex-direction: column;
   align-items: center;
@@ -93,8 +93,8 @@ defineEmits<{ track: [label: string] }>()
   transform: scale(0.9);
 }
 .tool-item .icon {
-  width: 54px;
+  width: 75px;
-  height: 54px;
+  height: 75px;
   display: flex;
   align-items: center;
   justify-content: center;