fix(ext/popup): fix reversed search, remove auto-focus, Enter opens items

- Search no longer auto-focuses; use "/" to focus it
- Typing in search no longer re-renders the entire view, just the
  item list — fixes backwards text caused by cursor reset to pos 0
- Arrow keys also update list without full re-render
- Enter opens the selected item even when search is focused

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

extension/src/popup/components/item-list.ts

@@ -25,11 +25,10 @@ function typeIcon(t: ItemType): string {
   }
 }
 
-export function renderItemList(app: HTMLElement): void {
+function buildRowsHtml(): string {
   const state = getState();
   const filtered = getFilteredEntries();
-
-  const rowsHtml = filtered.length > 0
+  return filtered.length > 0
     ? filtered.map(([id, e], i) => `
         <div class="entry-row ${i === state.selectedIndex ? 'selected' : ''}" data-id="${escapeHtml(id)}" data-index="${i}">
           <span class="entry-name"><span class="type-icon" aria-hidden="true">${typeIcon(e.type)}</span> ${escapeHtml(e.title)}${e.attachment_summaries.length > 0 ? ' <span class="entry-row__attach-indicator" title="has attachments">📎</span>' : ''}</span>
@@ -37,7 +36,28 @@ export function renderItemList(app: HTMLElement): void {
         </div>
       `).join('')
     : '<div class="empty">no items</div>';
+}
 
+function updateItemList(): void {
+  const list = document.getElementById('item-list');
+  if (list) {
+    list.innerHTML = buildRowsHtml();
+    wireRowClicks();
+  }
+}
+
+function wireRowClicks(): void {
+  document.querySelectorAll('.entry-row').forEach(row => {
+    row.addEventListener('click', async () => {
+      const id = (row as HTMLElement).dataset.id!;
+      document.removeEventListener('keydown', handleListKeydown);
+      await openItem(id);
+    });
+  });
+}
+
+export function renderItemList(app: HTMLElement): void {
+  const state = getState();
   app.innerHTML = `
     <div class="search-bar">
       <input type="text" id="search-input" placeholder="/ search..." value="${escapeHtml(state.searchQuery)}">
@@ -50,7 +70,7 @@ export function renderItemList(app: HTMLElement): void {
       <button class="btn" id="lock-btn" style="font-size:11px;">lock</button>
     </div>
     <div class="entry-list" id="item-list">
-      ${rowsHtml}
+      ${buildRowsHtml()}
     </div>
     <div class="keyhints">
       <span><kbd>/</kbd> search</span>
@@ -64,7 +84,12 @@ export function renderItemList(app: HTMLElement): void {
 
   const searchInput = document.getElementById('search-input') as HTMLInputElement | null;
   searchInput?.addEventListener('input', () => {
-    setState({ searchQuery: searchInput.value, selectedIndex: 0 });
+    const state2 = getState();
+    state2.searchQuery = searchInput.value;
+    state2.selectedIndex = 0;
+    const list = document.getElementById('item-list');
+    if (list) list.innerHTML = buildRowsHtml();
+    wireRowClicks();
   });
 
   document.getElementById('new-btn')?.addEventListener('click', () => {
@@ -98,21 +123,9 @@ export function renderItemList(app: HTMLElement): void {
     showSettingsPicker(e.currentTarget as HTMLElement);
   });
 
-  // Item row clicks.
-  const rows = app.querySelectorAll('.entry-row');
-  rows.forEach(row => {
-    row.addEventListener('click', async () => {
-      const id = (row as HTMLElement).dataset.id!;
-      document.removeEventListener('keydown', handleListKeydown);
-      await openItem(id);
-    });
-  });
+  wireRowClicks();
 
-  // Keyboard navigation.
   document.addEventListener('keydown', handleListKeydown);
-
-  // Focus search on open.
-  searchInput?.focus();
 }
 
 async function openItem(id: ItemId): Promise<void> {
@@ -195,17 +208,19 @@ function handleListKeydown(e: KeyboardEvent): void {
   if (e.key === 'ArrowDown') {
     e.preventDefault();
     const max = Math.max(filtered.length - 1, 0);
-    setState({ selectedIndex: Math.min(state.selectedIndex + 1, max) });
+    state.selectedIndex = Math.min(state.selectedIndex + 1, max);
+    updateItemList();
     return;
   }
 
   if (e.key === 'ArrowUp') {
     e.preventDefault();
-    setState({ selectedIndex: Math.max(state.selectedIndex - 1, 0) });
+    state.selectedIndex = Math.max(state.selectedIndex - 1, 0);
+    updateItemList();
     return;
   }
 
-  if (e.key === 'Enter' && !isSearch) {
+  if (e.key === 'Enter') {
     e.preventDefault();
     const selected = filtered[state.selectedIndex];
     if (selected) {