[feat] Add Civitai model upload wizard (#6694)

## Summary
Adds a complete model upload workflow that allows users to import models
from Civitai URLs directly into their library.

## Changes
- **Multi-step wizard**: URL input → metadata confirmation → upload
progress
- **Components**: UploadModelDialog, UploadModelUrlInput,
UploadModelConfirmation, UploadModelProgress, UploadModelDialogHeader
- **API integration**: New assetService methods for metadata retrieval
and URL-based uploads
- **Model type management**: useModelTypes composable for fetching and
formatting available model types
- **UX improvements**: Optional validation bypass for UrlInput component
- **Localization**: 26 new i18n strings for the upload workflow

## Review Focus
- Error handling for failed uploads and metadata retrieval
- Model type detection and selection logic
- Dialog state management across multi-step workflow

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6694-feat-Add-Civitai-model-upload-wizard-2ab6d73d36508193b3b1dd67c7cc5a09)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Claude <noreply@anthropic.com>

src/platform/assets/components/AssetBrowserModal.vue

@@ -73,11 +73,14 @@ import LeftSidePanel from '@/components/widget/panel/LeftSidePanel.vue'
 import { useFeatureFlags } from '@/composables/useFeatureFlags'
 import AssetFilterBar from '@/platform/assets/components/AssetFilterBar.vue'
 import AssetGrid from '@/platform/assets/components/AssetGrid.vue'
+import UploadModelDialog from '@/platform/assets/components/UploadModelDialog.vue'
+import UploadModelDialogHeader from '@/platform/assets/components/UploadModelDialogHeader.vue'
 import type { AssetDisplayItem } from '@/platform/assets/composables/useAssetBrowser'
 import { useAssetBrowser } from '@/platform/assets/composables/useAssetBrowser'
 import type { AssetItem } from '@/platform/assets/schemas/assetSchema'
 import { assetService } from '@/platform/assets/services/assetService'
 import { formatCategoryLabel } from '@/platform/assets/utils/categoryLabel'
+import { useDialogStore } from '@/stores/dialogStore'
 import { useModelToNodeStore } from '@/stores/modelToNodeStore'
 import { OnCloseKey } from '@/types/widgetTypes'
 
@@ -92,6 +95,7 @@ const props = defineProps<{
 }>()
 
 const { t } = useI18n()
+const dialogStore = useDialogStore()
 
 const emit = defineEmits<{
   'asset-select': [asset: AssetDisplayItem]
@@ -189,6 +193,15 @@ const { flags } = useFeatureFlags()
 const isUploadButtonEnabled = computed(() => flags.modelUploadButtonEnabled)
 
 function handleUploadClick() {
-  // Will be implemented in the future commit
+  dialogStore.showDialog({
+    key: 'upload-model',
+    headerComponent: UploadModelDialogHeader,
+    component: UploadModelDialog,
+    props: {
+      onUploadSuccess: async () => {
+        await execute()
+      }
+    }
+  })
 }
 </script>

src/platform/assets/components/UploadModelConfirmation.vue

@@ -0,0 +1,58 @@
+<template>
+  <div class="flex flex-col gap-4">
+    <!-- Model Info Section -->
+    <div class="flex flex-col gap-2">
+      <p class="text-sm text-muted m-0">
+        {{ $t('assetBrowser.modelAssociatedWithLink') }}
+      </p>
+      <p class="text-sm mt-0">
+        {{ metadata?.name || metadata?.filename }}
+      </p>
+    </div>
+
+    <!-- Model Type Selection -->
+    <div class="flex flex-col gap-2">
+      <label class="text-sm text-muted">
+        {{ $t('assetBrowser.modelTypeSelectorLabel') }}
+      </label>
+      <SingleSelect
+        v-model="selectedModelType"
+        :label="
+          isLoading
+            ? $t('g.loading')
+            : $t('assetBrowser.modelTypeSelectorPlaceholder')
+        "
+        :options="modelTypes"
+        :disabled="isLoading"
+      />
+      <div class="flex items-center gap-2 text-sm text-muted">
+        <i class="icon-[lucide--info]" />
+        <span>{{ $t('assetBrowser.notSureLeaveAsIs') }}</span>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+
+import SingleSelect from '@/components/input/SingleSelect.vue'
+import { useModelTypes } from '@/platform/assets/composables/useModelTypes'
+import type { AssetMetadata } from '@/platform/assets/schemas/assetSchema'
+
+const props = defineProps<{
+  modelValue: string | undefined
+  metadata: AssetMetadata | null
+}>()
+
+const emit = defineEmits<{
+  'update:modelValue': [value: string | undefined]
+}>()
+
+const { modelTypes, isLoading } = useModelTypes()
+
+const selectedModelType = computed({
+  get: () => props.modelValue ?? null,
+  set: (value: string | null) => emit('update:modelValue', value ?? undefined)
+})
+</script>

src/platform/assets/components/UploadModelDialog.vue

@@ -0,0 +1,108 @@
+<template>
+  <div class="upload-model-dialog flex flex-col justify-between gap-6 p-4 pt-6">
+    <!-- Step 1: Enter URL -->
+    <UploadModelUrlInput
+      v-if="currentStep === 1"
+      v-model="wizardData.url"
+      :error="uploadError"
+    />
+
+    <!-- Step 2: Confirm Metadata -->
+    <UploadModelConfirmation
+      v-else-if="currentStep === 2"
+      v-model="selectedModelType"
+      :metadata="wizardData.metadata"
+    />
+
+    <!-- Step 3: Upload Progress -->
+    <UploadModelProgress
+      v-else-if="currentStep === 3"
+      :status="uploadStatus"
+      :error="uploadError"
+      :metadata="wizardData.metadata"
+      :model-type="selectedModelType"
+    />
+
+    <!-- Navigation Footer -->
+    <UploadModelFooter
+      :current-step="currentStep"
+      :is-fetching-metadata="isFetchingMetadata"
+      :is-uploading="isUploading"
+      :can-fetch-metadata="canFetchMetadata"
+      :can-upload-model="canUploadModel"
+      :upload-status="uploadStatus"
+      @back="goToPreviousStep"
+      @fetch-metadata="handleFetchMetadata"
+      @upload="handleUploadModel"
+      @close="handleClose"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { onMounted } from 'vue'
+
+import UploadModelConfirmation from '@/platform/assets/components/UploadModelConfirmation.vue'
+import UploadModelFooter from '@/platform/assets/components/UploadModelFooter.vue'
+import UploadModelProgress from '@/platform/assets/components/UploadModelProgress.vue'
+import UploadModelUrlInput from '@/platform/assets/components/UploadModelUrlInput.vue'
+import { useModelTypes } from '@/platform/assets/composables/useModelTypes'
+import { useUploadModelWizard } from '@/platform/assets/composables/useUploadModelWizard'
+import { useDialogStore } from '@/stores/dialogStore'
+
+const dialogStore = useDialogStore()
+const { modelTypes, fetchModelTypes } = useModelTypes()
+
+const emit = defineEmits<{
+  'upload-success': []
+}>()
+
+const {
+  currentStep,
+  isFetchingMetadata,
+  isUploading,
+  uploadStatus,
+  uploadError,
+  wizardData,
+  selectedModelType,
+  canFetchMetadata,
+  canUploadModel,
+  fetchMetadata,
+  uploadModel,
+  goToPreviousStep
+} = useUploadModelWizard(modelTypes)
+
+async function handleFetchMetadata() {
+  await fetchMetadata()
+}
+
+async function handleUploadModel() {
+  const success = await uploadModel()
+  if (success) {
+    emit('upload-success')
+  }
+}
+
+function handleClose() {
+  dialogStore.closeDialog({ key: 'upload-model' })
+}
+
+onMounted(() => {
+  fetchModelTypes()
+})
+</script>
+
+<style scoped>
+.upload-model-dialog {
+  width: 90vw;
+  max-width: 800px;
+  min-height: 400px;
+}
+
+@media (min-width: 640px) {
+  .upload-model-dialog {
+    width: auto;
+    min-width: 600px;
+  }
+}
+</style>

src/platform/assets/components/UploadModelDialogHeader.vue

@@ -0,0 +1,12 @@
+<template>
+  <div class="flex items-center gap-3 px-4 py-2 font-bold">
+    <span>{{ $t('assetBrowser.uploadModelFromCivitai') }}</span>
+    <span
+      class="rounded-full bg-white px-1.5 py-0 text-xxs font-medium uppercase text-black"
+    >
+      {{ $t('g.beta') }}
+    </span>
+  </div>
+</template>
+
+<script setup lang="ts"></script>

src/platform/assets/components/UploadModelFooter.vue

@@ -0,0 +1,72 @@
+<template>
+  <div class="flex justify-end gap-2">
+    <TextButton
+      v-if="currentStep !== 1 && currentStep !== 3"
+      :label="$t('g.back')"
+      type="secondary"
+      size="md"
+      :disabled="isFetchingMetadata || isUploading"
+      @click="emit('back')"
+    />
+    <span v-else />
+
+    <IconTextButton
+      v-if="currentStep === 1"
+      :label="$t('g.continue')"
+      type="primary"
+      size="md"
+      :disabled="!canFetchMetadata || isFetchingMetadata"
+      @click="emit('fetchMetadata')"
+    >
+      <template #icon>
+        <i
+          v-if="isFetchingMetadata"
+          class="icon-[lucide--loader-circle] animate-spin"
+        />
+      </template>
+    </IconTextButton>
+    <IconTextButton
+      v-else-if="currentStep === 2"
+      :label="$t('assetBrowser.upload')"
+      type="primary"
+      size="md"
+      :disabled="!canUploadModel || isUploading"
+      @click="emit('upload')"
+    >
+      <template #icon>
+        <i
+          v-if="isUploading"
+          class="icon-[lucide--loader-circle] animate-spin"
+        />
+      </template>
+    </IconTextButton>
+    <TextButton
+      v-else-if="currentStep === 3 && uploadStatus === 'success'"
+      :label="$t('assetBrowser.finish')"
+      type="primary"
+      size="md"
+      @click="emit('close')"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import IconTextButton from '@/components/button/IconTextButton.vue'
+import TextButton from '@/components/button/TextButton.vue'
+
+defineProps<{
+  currentStep: number
+  isFetchingMetadata: boolean
+  isUploading: boolean
+  canFetchMetadata: boolean
+  canUploadModel: boolean
+  uploadStatus: 'idle' | 'uploading' | 'success' | 'error'
+}>()
+
+const emit = defineEmits<{
+  (e: 'back'): void
+  (e: 'fetchMetadata'): void
+  (e: 'upload'): void
+  (e: 'close'): void
+}>()
+</script>

src/platform/assets/components/UploadModelProgress.vue

@@ -0,0 +1,68 @@
+<template>
+  <div class="flex flex-1 flex-col gap-6">
+    <!-- Uploading State -->
+    <div
+      v-if="status === 'uploading'"
+      class="flex flex-1 flex-col items-center justify-center gap-6"
+    >
+      <i
+        class="icon-[lucide--loader-circle] animate-spin text-6xl text-primary"
+      />
+      <div class="text-center">
+        <p class="m-0 text-sm font-bold">
+          {{ $t('assetBrowser.uploadingModel') }}
+        </p>
+      </div>
+    </div>
+
+    <!-- Success State -->
+    <div v-else-if="status === 'success'" class="flex flex-col gap-8">
+      <div class="flex flex-col gap-4">
+        <p class="text-sm text-muted m-0 font-bold">
+          {{ $t('assetBrowser.modelUploaded') }}
+        </p>
+        <p class="text-sm text-muted m-0">
+          {{ $t('assetBrowser.findInLibrary', { type: modelType }) }}
+        </p>
+      </div>
+
+      <div class="flex flex-row items-start p-8 bg-neutral-800 rounded-lg">
+        <div class="flex flex-col justify-center items-start gap-1 flex-1">
+          <p class="text-sm m-0">
+            {{ metadata?.name || metadata?.filename }}
+          </p>
+          <p class="text-sm text-muted m-0">
+            {{ modelType }}
+          </p>
+        </div>
+      </div>
+    </div>
+
+    <!-- Error State -->
+    <div
+      v-else-if="status === 'error'"
+      class="flex flex-1 flex-col items-center justify-center gap-6"
+    >
+      <i class="icon-[lucide--x-circle] text-6xl text-error" />
+      <div class="text-center">
+        <p class="m-0 text-sm font-bold">
+          {{ $t('assetBrowser.uploadFailed') }}
+        </p>
+        <p v-if="error" class="text-sm text-muted mb-0">
+          {{ error }}
+        </p>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import type { AssetMetadata } from '@/platform/assets/schemas/assetSchema'
+
+defineProps<{
+  status: 'idle' | 'uploading' | 'success' | 'error'
+  error?: string
+  metadata: AssetMetadata | null
+  modelType: string | undefined
+}>()
+</script>

src/platform/assets/components/UploadModelUrlInput.vue

@@ -0,0 +1,50 @@
+<template>
+  <div class="flex flex-col gap-4">
+    <div class="flex flex-col gap-2">
+      <p class="text-sm text-muted m-0">
+        {{ $t('assetBrowser.uploadModelDescription1') }}
+      </p>
+      <ul class="list-disc space-y-1 pl-5 mt-0 text-sm text-muted">
+        <li>{{ $t('assetBrowser.uploadModelDescription2') }}</li>
+        <li>{{ $t('assetBrowser.uploadModelDescription3') }}</li>
+      </ul>
+    </div>
+
+    <div class="flex flex-col gap-2">
+      <label class="text-sm text-muted mb-0">
+        {{ $t('assetBrowser.civitaiLinkLabel') }}
+      </label>
+      <UrlInput
+        v-model="url"
+        :placeholder="$t('assetBrowser.civitaiLinkPlaceholder')"
+        :disable-validation="true"
+      />
+      <p v-if="error" class="text-xs text-error">
+        {{ error }}
+      </p>
+      <p v-else class="text-xs text-muted">
+        {{ $t('assetBrowser.civitaiLinkExample') }}
+      </p>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+
+import UrlInput from '@/components/common/UrlInput.vue'
+
+const props = defineProps<{
+  modelValue: string
+  error?: string
+}>()
+
+const emit = defineEmits<{
+  'update:modelValue': [value: string]
+}>()
+
+const url = computed({
+  get: () => props.modelValue,
+  set: (value: string) => emit('update:modelValue', value)
+})
+</script>