Remove title field again after revert - keep auto-resize behavior

- Removed separate title input field (reverted back in previous commit)
- Title extracted from first line of content
- Favorite star moved to toolbar
- Fixed duplicate import in NotesList
- Auto-resize behavior preserved to avoid scroll jumping issue

src/components/NoteEditor.tsx

@@ -25,13 +25,11 @@ const imageCache = new Map<string, string>();
 
 
 export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, isFocusMode, onToggleFocusMode, editorFont = 'Source Code Pro', editorFontSize = 14, previewFont = 'Merriweather', previewFontSize = 16, api }: NoteEditorProps) {
-  const [localTitle, setLocalTitle] = useState('');
   const [localContent, setLocalContent] = useState('');
   const [localCategory, setLocalCategory] = useState('');
   const [localFavorite, setLocalFavorite] = useState(false);
   const [isSaving, setIsSaving] = useState(false);
   const [hasUnsavedChanges, setHasUnsavedChanges] = useState(false);
-  const [titleManuallyEdited, setTitleManuallyEdited] = useState(false);
   const [isExportingPDF, setIsExportingPDF] = useState(false);
   const [isPreviewMode, setIsPreviewMode] = useState(false);
   const [processedContent, setProcessedContent] = useState('');
@@ -140,17 +138,10 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
   useEffect(() => {
     const loadNewNote = () => {
       if (note) {
-        setLocalTitle(note.title);
         setLocalContent(note.content);
         setLocalCategory(note.category || '');
         setLocalFavorite(note.favorite);
         setHasUnsavedChanges(false);
-        setIsPreviewMode(false);
-        setProcessedContent(''); // Clear preview content immediately
-        
-        const firstLine = note.content.split('\n')[0].replace(/^#+\s*/, '').trim();
-        const titleMatchesFirstLine = note.title === firstLine || note.title === firstLine.substring(0, 50);
-        setTitleManuallyEdited(!titleMatchesFirstLine);
         
         previousNoteIdRef.current = note.id;
         previousNoteContentRef.current = note.content;
@@ -184,9 +175,13 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
     console.log('Last 50 chars:', localContent.slice(-50));
     setIsSaving(true);
     setHasUnsavedChanges(false);
+    
+    const firstLine = localContent.split('\n')[0].replace(/^#+\s*/, '').trim();
+    const title = firstLine || 'Untitled';
+    
     onUpdateNote({
       ...note,
-      title: localTitle,
+      title,
       content: localContent,
       category: localCategory,
       favorite: localFavorite,
@@ -194,36 +189,18 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
     setTimeout(() => setIsSaving(false), 500);
   };
 
-  const handleTitleChange = (value: string) => {
-    setLocalTitle(value);
-    setTitleManuallyEdited(true);
-    setHasUnsavedChanges(true);
-  };
-
   const handleContentChange = (value: string) => {
     setLocalContent(value);
     setHasUnsavedChanges(true);
-    
-    if (!titleManuallyEdited) {
-      const firstLine = value.split('\n')[0].replace(/^#+\s*/, '').trim();
-      if (firstLine) {
-        setLocalTitle(firstLine.substring(0, 50));
-      }
-    }
   };
 
   const handleDiscard = () => {
     if (!note) return;
     
-    setLocalTitle(note.title);
     setLocalContent(note.content);
     setLocalCategory(note.category || '');
     setLocalFavorite(note.favorite);
     setHasUnsavedChanges(false);
-    
-    const firstLine = note.content.split('\n')[0].replace(/^#+\s*/, '').trim();
-    const titleMatchesFirstLine = note.title === firstLine || note.title === firstLine.substring(0, 50);
-    setTitleManuallyEdited(!titleMatchesFirstLine);
   };
 
   const loadFontAsBase64 = async (fontPath: string): Promise<string> => {
@@ -344,7 +321,8 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
       container.style.color = '#000000';
       
       const titleElement = document.createElement('h1');
-      titleElement.textContent = localTitle || 'Untitled';
+      const firstLine = localContent.split('\n')[0].replace(/^#+\s*/, '').trim();
+      titleElement.textContent = firstLine || 'Untitled';
       titleElement.style.marginTop = '0';
       titleElement.style.marginBottom = '20px';
       titleElement.style.fontSize = '24px';
@@ -385,7 +363,8 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
       // Use jsPDF's html() method with custom font set
       await pdf.html(container, {
         callback: async (doc) => {
-          const fileName = `${localTitle || 'note'}.pdf`;
+          const firstLine = localContent.split('\n')[0].replace(/^#+\s*/, '').trim();
+          const fileName = `${firstLine || 'note'}.pdf`;
           doc.save(fileName);
           
           setTimeout(async () => {
@@ -422,9 +401,12 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
   const handleFavoriteToggle = () => {
     setLocalFavorite(!localFavorite);
     if (note) {
+      const firstLine = localContent.split('\n')[0].replace(/^#+\s*/, '').trim();
+      const title = firstLine || 'Untitled';
+      
       onUpdateNote({
         ...note,
-        title: localTitle,
+        title,
         content: localContent,
         category: localCategory,
         favorite: !localFavorite,
@@ -667,36 +649,6 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
 
   return (
     <div className="flex-1 flex flex-col bg-white dark:bg-gray-900">
-      {/* Header */}
-      <div className="border-b border-gray-200 dark:border-gray-700 px-6 py-4">
-        <div className="flex items-start justify-between gap-4">
-          <div className="flex-1 min-w-0">
-            <input
-              type="text"
-              value={localTitle}
-              onChange={(e) => handleTitleChange(e.target.value)}
-              placeholder="Note Title"
-              className="w-full text-2xl font-semibold border-none outline-none focus:ring-0 bg-transparent text-gray-900 dark:text-gray-100 placeholder-gray-400"
-            />
-          </div>
-          
-          <button
-            onClick={handleFavoriteToggle}
-            className="p-1.5 hover:bg-gray-100 dark:hover:bg-gray-800 rounded-lg transition-colors flex-shrink-0"
-            title={localFavorite ? "Remove from Favorites" : "Add to Favorites"}
-          >
-            <svg 
-              className={`w-5 h-5 ${localFavorite ? 'text-yellow-500 fill-current' : 'text-gray-400 dark:text-gray-500'}`}
-              fill={localFavorite ? "currentColor" : "none"}
-              stroke="currentColor" 
-              viewBox="0 0 24 24"
-            >
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11.049 2.927c.3-.921 1.603-.921 1.902 0l1.519 4.674a1 1 0 00.95.69h4.915c.969 0 1.371 1.24.588 1.81l-3.976 2.888a1 1 0 00-.363 1.118l1.518 4.674c.3.922-.755 1.688-1.538 1.118l-3.976-2.888a1 1 0 00-1.176 0l-3.976 2.888c-.783.57-1.838-.197-1.538-1.118l1.518-4.674a1 1 0 00-.363-1.118l-3.976-2.888c-.784-.57-.38-1.81.588-1.81h4.914a1 1 0 00.951-.69l1.519-4.674z" />
-            </svg>
-          </button>
-        </div>
-      </div>
-
       {/* Toolbar */}
       <div className="border-b border-gray-200 dark:border-gray-700 px-6 py-3 bg-gray-50 dark:bg-gray-800/50">
         <div className="flex items-center justify-between">
@@ -766,6 +718,21 @@ export function NoteEditor({ note, onUpdateNote, onUnsavedChanges, categories, i
 
             {/* Action Buttons */}
             <div className="flex items-center gap-1 pl-2 border-l border-gray-200 dark:border-gray-700">
+              <button
+                onClick={handleFavoriteToggle}
+                className="p-1.5 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
+                title={localFavorite ? "Remove from Favorites" : "Add to Favorites"}
+              >
+                <svg 
+                  className={`w-5 h-5 ${localFavorite ? 'text-yellow-500 fill-current' : 'text-gray-600 dark:text-gray-400'}`}
+                  fill={localFavorite ? "currentColor" : "none"}
+                  stroke="currentColor" 
+                  viewBox="0 0 24 24"
+                >
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11.049 2.927c.3-.921 1.603-.921 1.902 0l1.519 4.674a1 1 0 00.95.69h4.915c.969 0 1.371 1.24.588 1.81l-3.976 2.888a1 1 0 00-.363 1.118l1.518 4.674c.3.922-.755 1.688-1.538 1.118l-3.976-2.888a1 1 0 00-1.176 0l-3.976 2.888c-.783.57-1.838-.197-1.538-1.118l1.518-4.674a1 1 0 00-.363-1.118l-3.976-2.888c-.784-.57-.38-1.81.588-1.81h4.914a1 1 0 00.951-.69l1.519-4.674z" />
+                </svg>
+              </button>
+
               <button
                 onClick={handleSave}
                 disabled={!hasUnsavedChanges || isSaving}

src/components/NotesList.tsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import { Note } from '../types';
-import { categoryColorsSync } from '../services/categoryColorsSync';
 import { SyncStatus } from '../services/syncManager';
 import { categoryColorsSync } from '../services/categoryColorsSync';