fix: filter library videos in lesson with videos in the current lesson

apps/dashboard/src/lib/features/course/components/lesson/video/add-video-modal.svelte

@@ -45,7 +45,7 @@
       <Dialog.Title>{$t('course.navItem.lessons.materials.tabs.video.add_video.title')}</Dialog.Title>
     </Dialog.Header>
 
-    <UnderlineTabs.Root bind:value={currentTab} class="">
+    <UnderlineTabs.Root bind:value={currentTab} class="min-w-0">
       <UnderlineTabs.List>
         {#each tabs as item (item.value)}
           <UnderlineTabs.Trigger

apps/dashboard/src/lib/features/course/components/lesson/video/lesson-video-simple-card.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-  import * as Avatar from '@cio/ui/base/avatar';
   import { Image } from '$features/ui';
   import VideoIcon from '@lucide/svelte/icons/video';
   import { ExternalLinkIcon, HoverableItem } from '@cio/ui/custom/moving-icons';
@@ -36,16 +35,6 @@
 
   const isYoutubeWithLink = $derived(video.type === 'youtube' && !!video.link);
 
-  const courseLogoSrc = $derived.by(() => {
-    const raw = courseApi.course?.logo;
-
-    if (typeof raw === 'string' && raw.trim().length > 0) {
-      return raw.trim();
-    }
-
-    return null;
-  });
-
   const channelLine = $derived.by(() => {
     const courseTitle = courseApi.course?.title?.trim();
 
@@ -104,15 +93,6 @@
   </div>
 
   <div class="mt-3 flex min-w-0 gap-3 px-3 py-3">
-    <Avatar.Root class="mt-0.5 size-9 shrink-0">
-      {#if courseLogoSrc}
-        <Avatar.Image src={courseLogoSrc} alt={channelLine} />
-      {/if}
-      <Avatar.Fallback>
-        <VideoIcon class="ui:text-muted-foreground size-4" />
-      </Avatar.Fallback>
-    </Avatar.Root>
-
     <div class="min-w-0 flex-1">
       <div class="flex items-start gap-1">
         <div class="ui:text-foreground min-w-0 flex-1 text-base leading-snug font-semibold" {title}>

apps/dashboard/src/lib/features/course/components/lesson/video/library-video.svelte

@@ -3,6 +3,7 @@
   import { Spinner } from '@cio/ui/base/spinner';
   import { Empty } from '@cio/ui/custom/empty';
   import { InputField } from '@cio/ui/custom/input-field';
+  import VideoIcon from '@lucide/svelte/icons/video';
   import { lessonApi } from '$features/course/api';
   import { mediaApi } from '$features/media/api';
   import type { OrganizationAsset } from '$features/media/utils';
@@ -21,10 +22,21 @@
   let search = $state('');
   let isLoading = $state(false);
   let addingAssetId = $state<string | null>(null);
-  // Local copy so adding a video swipes it out of this list without mutating the
-  // shared mediaApi.assets store (which also backs the media manager page).
+  // Local copy so the fetch (which also backs the media manager page via the
+  // shared mediaApi.assets store) doesn't leak removals between surfaces.
   let assets = $state<OrganizationAsset[]>([]);
 
+  // Asset ids already attached to this lesson, so the library hides them.
+  const addedAssetIds = $derived(
+    new Set(
+      (lessonApi.lesson?.videos ?? [])
+        .map((video) => (video as { assetId?: string }).assetId)
+        .filter((id): id is string => Boolean(id))
+    )
+  );
+
+  const visibleAssets = $derived(assets.filter((asset) => !addedAssetIds.has(asset.id)));
+
   async function loadLibrary() {
     isLoading = true;
     await mediaApi.listAssets({
@@ -53,7 +65,6 @@
       }
 
       lessonApi.updateLessonState('videos', [lessonVideo], { append: true });
-      assets = assets.filter((item) => item.id !== asset.id);
       snackbar.success('snackbar.media_manager.added_to_lesson');
     } finally {
       addingAssetId = null;
@@ -65,7 +76,7 @@
   });
 </script>
 
-<div class="space-y-3">
+<div class="min-w-0 space-y-3">
   <div class="flex items-end gap-3">
     <InputField
       label={$t('course.navItem.lessons.materials.tabs.video.add_video.search_library')}
@@ -84,24 +95,36 @@
       icon={Spinner}
       class="ui:max-h-40 py-6"
     />
-  {:else if assets.length === 0}
+  {:else if visibleAssets.length === 0}
     <p class="ui:text-muted-foreground text-sm">
       {$t('course.navItem.lessons.materials.tabs.video.add_video.no_library_videos')}
     </p>
   {:else}
     <div class="max-h-[360px] space-y-2 overflow-x-hidden">
-      {#each assets as asset (asset.id)}
+      {#each visibleAssets as asset (asset.id)}
         <div
-          class="flex items-center justify-between rounded-md border p-3"
+          class="flex items-center justify-between gap-3 rounded-md border p-3"
           animate:flip={{ duration: 250 }}
           out:fly={{ x: -400, duration: 300 }}
         >
-          <div class="max-w-md">
-            <p class="truncate text-sm font-medium wrap-break-word">{asset.title || asset.storageKey || asset.id}</p>
-            <p class="ui:text-muted-foreground text-xs">{asset.provider}</p>
+          <div class="flex min-w-0 flex-1 items-center gap-3">
+            <div
+              class="ui:bg-muted/40 flex h-12 w-20 shrink-0 items-center justify-center overflow-hidden rounded border"
+            >
+              {#if asset.thumbnailUrl}
+                <img src={asset.thumbnailUrl} alt={asset.title ?? ''} class="h-full w-full object-cover" />
+              {:else}
+                <VideoIcon class="ui:text-muted-foreground size-5" />
+              {/if}
+            </div>
+            <div class="min-w-0 flex-1">
+              <p class="truncate text-sm font-medium">{asset.title || asset.storageKey || asset.id}</p>
+              <p class="ui:text-muted-foreground text-xs">{asset.provider}</p>
+            </div>
           </div>
           <Button
             size="sm"
+            class="shrink-0"
             onclick={() => addFromLibrary(asset)}
             loading={addingAssetId === asset.id}
             disabled={addingAssetId !== null}