Add JSDoc documentation and file headers to all source files

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

src/components/AccountMenu/SearchBar.vue

@@ -10,6 +10,16 @@
 </template>
 
 <script setup>
+// The Lucia project.
+// Copyright 2024-2026 DSP, inc.  All rights reserved.
+// Authors:
+//   cindy.chang@dsp.im (Cindy Chang), 2024/5/30
+//   imacat.yang@dsp.im (imacat), 2023/9/23
+/**
+ * @module components/AccountMenu/SearchBar Search input bar for
+ *   filtering accounts, emits search query on click or Enter key.
+ */
+
 import { ref } from 'vue';
 import i18next from '@/i18n/i18n.js';
 
@@ -17,11 +27,19 @@ const emit = defineEmits(['on-search-account-button-click']);
 
 const inputQuery = ref("");
 
+/**
+ * Emits the search query when the search icon is clicked.
+ * @param {Event} event - The click event.
+ */
 const onSearchClick = (event) => {
     event.preventDefault();
     emit('on-search-account-button-click', inputQuery.value);
 };
 
+/**
+ * Emits the search query when Enter key is pressed.
+ * @param {KeyboardEvent} event - The keypress event.
+ */
 const handleKeyPressOfSearch = (event) => {
     if (event.key === 'Enter') {
         emit('on-search-account-button-click', inputQuery.value);