AI: address issue #149

backend/db/migrate/20261112000000_add_foreign_key_on_deerjikists_tag_id.rb

@@ -1,5 +0,0 @@
-class AddForeignKeyOnDeerjikistsTagId < ActiveRecord::Migration[8.0]
-  def change
-    add_foreign_key :deerjikists, :tags, column: :tag_id
-  end
-end

frontend/src/components/PostEmbed.tsx

@@ -196,6 +196,27 @@ const PostEmbed: FC<Props> = (
       return <TwitterEmbed userId={userId} statusId={statusId}/>
     }
 
+  case 'tiktok.com':
+    {
+      const videoId = url.pathname.match (/^\/@[^/]+\/video\/(\d+)\/?$/)?.[1]
+      if (!(videoId))
+	break
+
+      if (embedAutoLoadMode === 'off')
+	return externalLink
+      if (shouldLoadEmbed === false)
+	return manualLoadControl
+
+      return (
+	  <iframe
+	      src={`https://www.tiktok.com/player/v1/${ encodeURIComponent (videoId) }`}
+	      title={post.title || post.url}
+	      width={325}
+	      height={578}
+	      className="max-w-full"
+	      allowFullScreen/>)
+    }
+
   case 'youtube.com':
     {
       const videoId = url.searchParams.get ('v')