feat(web-admin): add OaAppIcon display for ep and image URLs.

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

web-admin/src/components/oa-approval/OaAppIcon.vue

@@ -0,0 +1,75 @@
+<template>
+  <span class="oa-app-icon" :class="`oa-app-icon--${size}`" :style="boxStyle">
+    <el-icon v-if="resolved.kind === 'ep'" :style="{ color: resolved.fg }">
+      <component :is="epComponent" />
+    </el-icon>
+    <img v-else :src="resolved.src" alt="" />
+  </span>
+</template>
+
+<script setup lang="ts">
+  import { computed, type Component } from 'vue'
+  import * as EpIcons from '@element-plus/icons-vue'
+  import { OA_APP_DEFAULT_EP_ICON, resolveOaAppIcon } from '@/utils/oa-app-icons'
+
+  const props = withDefaults(
+    defineProps<{
+      iconUrl?: string | null
+      /** sm=32 card, md=56 dialog */
+      size?: 'sm' | 'md'
+    }>(),
+    { size: 'sm' }
+  )
+
+  const resolved = computed(() => resolveOaAppIcon(props.iconUrl))
+
+  const epComponent = computed<Component>(() => {
+    if (resolved.value.kind !== 'ep') return (EpIcons as any)[OA_APP_DEFAULT_EP_ICON]
+    const name = resolved.value.icon
+    return (EpIcons as any)[name] || (EpIcons as any)[OA_APP_DEFAULT_EP_ICON]
+  })
+
+  const boxStyle = computed(() => {
+    if (resolved.value.kind === 'ep') {
+      return { background: resolved.value.bg, color: resolved.value.fg }
+    }
+    return {}
+  })
+</script>
+
+<style scoped lang="scss">
+  .oa-app-icon {
+    display: grid;
+    flex-shrink: 0;
+    place-items: center;
+    overflow: hidden;
+
+    img {
+      display: block;
+      width: 100%;
+      height: 100%;
+      object-fit: cover;
+    }
+  }
+
+  .oa-app-icon--sm {
+    width: 32px;
+    height: 32px;
+    border-radius: 8px;
+
+    .el-icon {
+      font-size: 16px;
+    }
+  }
+
+  .oa-app-icon--md {
+    width: 56px;
+    height: 56px;
+    border-radius: 12px;
+    box-shadow: 0 1px 3px rgb(15 23 42 / 8%);
+
+    .el-icon {
+      font-size: 26px;
+    }
+  }
+</style>