[refactor] Replace PrimeVue ProgressSpinner with Lucide loader icon (#9372)

## Summary
- Replace PrimeVue `ProgressSpinner` with Lucide `loader-circle` icon in
App.vue and WorkspaceAuthGate.vue
- Use white color for loading spinner for better visibility on dark
backgrounds
- Remove `primevue/progressspinner` imports and update related test

## Changes
- **App.vue**: Replace `ProgressSpinner` with
`icon-[lucide--loader-circle]`
- **WorkspaceAuthGate.vue**: Same replacement
- **WorkspaceAuthGate.test.ts**: Remove ProgressSpinner mock, use
`.animate-spin` selector

## Review Focus
- Visual consistency of white spinner on dark background during initial
load

<img width="1596" height="1189" alt="스크린샷 2026-03-04 오후 6 28 27"
src="https://github.com/user-attachments/assets/d703db74-4123-4328-912a-45ac45cf6eeb"
/>
<img width="1680" height="1304" alt="스크린샷 2026-03-04 오후 6 28 24"
src="https://github.com/user-attachments/assets/8026d10a-7e06-4f95-849c-bc891756823c"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9372-refactor-Replace-PrimeVue-ProgressSpinner-with-Lucide-loader-icon-3196d73d3650815bb1d1d4554f7f744e)
by [Unito](https://www.unito.io)

src/platform/assets/components/ActiveMediaAssetCard.vue

@@ -24,20 +24,14 @@
         class="absolute inset-0 flex items-center justify-center bg-modal-card-placeholder-background"
       >
         <!-- Spinner for queued/initialization states -->
-        <i
-          v-if="isQueued"
-          class="icon-[lucide--loader-circle] size-8 animate-spin text-muted-foreground"
-        />
+        <Loader v-if="isQueued" size="md" class="text-muted-foreground" />
         <!-- Error icon for failed state -->
         <i
           v-else-if="isFailed"
           class="icon-[lucide--circle-alert] size-8 text-red-500"
         />
         <!-- Spinner for running without preview -->
-        <i
-          v-else
-          class="icon-[lucide--loader-circle] size-8 animate-spin text-muted-foreground"
-        />
+        <Loader v-else size="md" class="text-muted-foreground" />
       </div>
       <!-- Cancel/Delete button overlay -->
       <Button
@@ -80,6 +74,7 @@
 import { computed, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 
+import Loader from '@/components/common/Loader.vue'
 import Button from '@/components/ui/button/Button.vue'
 import { useJobActions } from '@/composables/queue/useJobActions'
 import type { JobListItem } from '@/composables/queue/useJobList'

src/platform/assets/components/AssetExportProgressDialog.vue

@@ -2,6 +2,7 @@
 import { computed, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 
+import Loader from '@/components/common/Loader.vue'
 import HoneyToast from '@/components/honeyToast/HoneyToast.vue'
 import Button from '@/components/ui/button/Button.vue'
 import type { AssetExport } from '@/stores/assetExportStore'
@@ -146,9 +147,7 @@ function closeDialog() {
                 </Button>
               </template>
               <template v-else-if="job.status === 'running'">
-                <i
-                  class="icon-[lucide--loader-circle] size-4 animate-spin text-base-foreground"
-                />
+                <Loader size="sm" class="text-base-foreground" />
                 <span class="text-xs text-base-foreground">
                   {{ progressPercent(job) }}%
                 </span>

src/platform/assets/components/ModelImportProgressDialog.vue

@@ -4,6 +4,7 @@ import Popover from 'primevue/popover'
 import { computed, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 
+import Loader from '@/components/common/Loader.vue'
 import HoneyToast from '@/components/honeyToast/HoneyToast.vue'
 import ProgressToastItem from '@/components/toast/ProgressToastItem.vue'
 import Button from '@/components/ui/button/Button.vue'
@@ -175,9 +176,7 @@ function closeDialog() {
       >
         <div class="flex min-w-0 flex-1 items-center gap-2 text-sm">
           <template v-if="isInProgress">
-            <i
-              class="icon-[lucide--loader-circle] size-4 flex-shrink-0 animate-spin text-muted-foreground"
-            />
+            <Loader size="sm" class="flex-shrink-0 text-muted-foreground" />
             <span
               class="min-w-0 flex-1 truncate font-bold text-base-foreground"
             >

src/platform/assets/components/UploadModelFooter.vue

@@ -49,10 +49,7 @@
       :disabled="!canFetchMetadata || isFetchingMetadata"
       @click="emit('fetchMetadata')"
     >
-      <i
-        v-if="isFetchingMetadata"
-        class="icon-[lucide--loader-circle] animate-spin"
-      />
+      <Loader v-if="isFetchingMetadata" />
       <span>{{ $t('g.continue') }}</span>
     </Button>
     <Button
@@ -63,7 +60,7 @@
       :disabled="!canUploadModel || isUploading"
       @click="emit('upload')"
     >
-      <i v-if="isUploading" class="icon-[lucide--loader-circle] animate-spin" />
+      <Loader v-if="isUploading" />
       <span>{{ $t('assetBrowser.upload') }}</span>
     </Button>
     <template
@@ -109,6 +106,7 @@
 <script setup lang="ts">
 import { ref } from 'vue'
 
+import Loader from '@/components/common/Loader.vue'
 import Button from '@/components/ui/button/Button.vue'
 import VideoHelpDialog from '@/platform/assets/components/VideoHelpDialog.vue'
 

src/platform/workspace/auth/WorkspaceAuthGate.test.ts

@@ -1,6 +1,7 @@
 import { flushPromises, mount } from '@vue/test-utils'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 import { ref } from 'vue'
+import { createI18n } from 'vue-i18n'
 
 import WorkspaceAuthGate from './WorkspaceAuthGate.vue'
 
@@ -50,10 +51,6 @@ vi.mock('@/platform/distribution/types', () => ({
   }
 }))
 
-vi.mock('primevue/progressspinner', () => ({
-  default: { template: '<div class="progress-spinner" />' }
-}))
-
 describe('WorkspaceAuthGate', () => {
   beforeEach(() => {
     vi.clearAllMocks()
@@ -66,8 +63,11 @@ describe('WorkspaceAuthGate', () => {
     mockWorkspaceStoreInitialize.mockResolvedValue(undefined)
   })
 
+  const i18n = createI18n({ legacy: false })
+
   const mountComponent = () =>
     mount(WorkspaceAuthGate, {
+      global: { plugins: [i18n] },
       slots: {
         default: '<div data-testid="slot-content">App Content</div>'
       }
@@ -81,7 +81,7 @@ describe('WorkspaceAuthGate', () => {
       await flushPromises()
 
       expect(wrapper.find('[data-testid="slot-content"]').exists()).toBe(true)
-      expect(wrapper.find('.progress-spinner').exists()).toBe(false)
+      expect(wrapper.find('[role="status"]').exists()).toBe(false)
       expect(mockRefreshRemoteConfig).not.toHaveBeenCalled()
     })
   })
@@ -92,7 +92,7 @@ describe('WorkspaceAuthGate', () => {
 
       const wrapper = mountComponent()
 
-      expect(wrapper.find('.progress-spinner').exists()).toBe(true)
+      expect(wrapper.find('[role="status"]').exists()).toBe(true)
       expect(wrapper.find('[data-testid="slot-content"]').exists()).toBe(false)
     })
 
@@ -100,7 +100,7 @@ describe('WorkspaceAuthGate', () => {
       mockIsInitialized.value = false
 
       const wrapper = mountComponent()
-      expect(wrapper.find('.progress-spinner').exists()).toBe(true)
+      expect(wrapper.find('[role="status"]').exists()).toBe(true)
 
       mockIsInitialized.value = true
       mockCurrentUser.value = null
@@ -180,7 +180,7 @@ describe('WorkspaceAuthGate', () => {
       await flushPromises()
 
       // Still showing spinner before timeout
-      expect(wrapper.find('.progress-spinner').exists()).toBe(true)
+      expect(wrapper.find('[role="status"]').exists()).toBe(true)
 
       // Advance past the 10 second timeout
       await vi.advanceTimersByTimeAsync(10_001)

src/platform/workspace/auth/WorkspaceAuthGate.vue

@@ -4,7 +4,7 @@
     v-else
     class="fixed inset-0 z-[1100] flex items-center justify-center bg-[var(--p-mask-background)]"
   >
-    <ProgressSpinner />
+    <Loader size="lg" class="text-white" />
   </div>
 </template>
 
@@ -22,8 +22,8 @@
  * instead of workspace tokens when the workspace feature is enabled.
  */
 import { promiseTimeout, until } from '@vueuse/core'
+import Loader from '@/components/common/Loader.vue'
 import { storeToRefs } from 'pinia'
-import ProgressSpinner from 'primevue/progressspinner'
 import { onMounted, ref } from 'vue'
 
 import { useFeatureFlags } from '@/composables/useFeatureFlags'