Add JSDoc documentation and file headers to all source files

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/views/AuthContainer.vue

@@ -9,6 +9,17 @@
 </template>
 
 <script setup>
+// The Lucia project.
+// Copyright 2023-2026 DSP, inc.  All rights reserved.
+// Authors:
+//   chiayin.kuo@dsp.im (chiayin), 2023/1/31
+//   cindy.chang@dsp.im (Cindy Chang), 2024/5/30
+//   imacat.yang@dsp.im (imacat), 2023/9/23
+/**
+ * @module views/AuthContainer Layout container for
+ *   authentication-related pages with header and navbar.
+ */
+
 import Header from "@/components/Header.vue";
 import Navbar from "@/components/Navbar.vue";
 </script>