feat(comments) : add file attachments UI for comments

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/components/CommentDocumentList.vue

@@ -0,0 +1,55 @@
+<template>
+  <div v-if="documents.length" class="space-y-1 mt-2">
+    <div
+      v-for="doc in documents"
+      :key="doc.id"
+      class="flex items-center justify-between rounded border border-base-200 bg-base-100 px-2 py-1.5 text-xs"
+    >
+      <div class="flex items-center gap-2 min-w-0">
+        <component
+          :is="documentIcon(doc).component"
+          class="w-4 h-4 flex-shrink-0"
+          :class="documentIcon(doc).colorClass"
+        />
+        <span class="truncate">{{ doc.name || doc.filename }}</span>
+        <span class="text-base-content/40 flex-shrink-0">{{ formatSize(doc.size) }}</span>
+      </div>
+      <div class="flex items-center gap-1 flex-shrink-0 ml-2">
+        <button
+          type="button"
+          class="btn btn-ghost btn-xs"
+          :disabled="!canPreviewDocument(doc)"
+          :title="canPreviewDocument(doc) ? 'Consulter' : 'Aperçu non disponible'"
+          @click="openPreview(doc)"
+        >
+          Consulter
+        </button>
+        <button
+          type="button"
+          class="btn btn-ghost btn-xs"
+          @click="downloadDocument(doc)"
+        >
+          Télécharger
+        </button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import type { CommentDocument } from '~/composables/useComments'
+import { canPreviewDocument } from '~/utils/documentPreview'
+import { formatSize, documentIcon, downloadDocument } from '~/shared/utils/documentDisplayUtils'
+
+defineProps<{
+  documents: CommentDocument[]
+}>()
+
+const openPreview = (doc: CommentDocument) => {
+  if (!canPreviewDocument(doc)) return
+  // Open file URL in new tab for preview
+  if (doc.fileUrl) {
+    window.open(doc.fileUrl, '_blank')
+  }
+}
+</script>