feat(editor): Move code editor preferences to settings and add option to expand editor

Add global settings integration and persistent user preferences for
the code editor. Settings are now stored in localStorage and persist
across sessions.

Changes:
- Add theme, word wrap, minimap, line numbers, and font size settings
- Load editor preferences from localStorage on initialization
- Expose global openSettings function for cross-component access
- Add settingsInitialTab state to control which settings tab opens
- Pass initialTab prop to Settings component for navigation

This improves UX by remembering user preferences and allows other
components to open settings to specific tabs programmatically.

server/routes/git.js

@@ -502,16 +502,16 @@ router.post('/generate-commit-message', async (req, res) => {
  */
 async function generateCommitMessageWithAI(files, diffContext, provider, projectPath) {
   // Create the prompt
-  const prompt = `You are a git commit message generator. Based on the following file changes and diffs, generate a commit message in conventional commit format.
+  const prompt = `Generate a conventional commit message for these changes.
 
 REQUIREMENTS:
-- Use conventional commit format: type(scope): subject
-- Include a body that explains what changed and why
-- Valid types: feat, fix, docs, style, refactor, perf, test, build, ci, chore
-- Keep subject line under 50 characters
-- Wrap body at 72 characters
-- Be specific and descriptive
-- Return ONLY the commit message, nothing else - no markdown, no explanations, no code blocks
+- Format: type(scope): subject
+- Include body explaining what changed and why
+- Types: feat, fix, docs, style, refactor, perf, test, build, ci, chore
+- Subject under 50 chars, body wrapped at 72 chars
+- Focus on user-facing changes, not implementation details
+- Consider what's being added AND removed
+- Return ONLY the commit message (no markdown, explanations, or code blocks)
 
 FILES CHANGED:
 ${files.map(f => `- ${f}`).join('\n')}
@@ -519,7 +519,7 @@ ${files.map(f => `- ${f}`).join('\n')}
 DIFFS:
 ${diffContext.substring(0, 4000)}
 
-Generate the commit message now:`;
+Generate the commit message:`;
 
   try {
     // Create a simple writer that collects the response

src/App.jsx

@@ -55,6 +55,7 @@ function AppContent() {
   const [isLoadingProjects, setIsLoadingProjects] = useState(true);
   const [isInputFocused, setIsInputFocused] = useState(false);
   const [showSettings, setShowSettings] = useState(false);
+  const [settingsInitialTab, setSettingsInitialTab] = useState('tools');
   const [showQuickSettings, setShowQuickSettings] = useState(false);
   const [autoExpandTools, setAutoExpandTools] = useLocalStorage('autoExpandTools', false);
   const [showRawParameters, setShowRawParameters] = useLocalStorage('showRawParameters', false);
@@ -308,6 +309,12 @@ function AppContent() {
   // Expose fetchProjects globally for component access
   window.refreshProjects = fetchProjects;
 
+  // Expose openSettings function globally for component access
+  window.openSettings = useCallback((tab = 'tools') => {
+    setSettingsInitialTab(tab);
+    setShowSettings(true);
+  }, []);
+
   // Handle URL-based session loading
   useEffect(() => {
     if (sessionId && projects.length > 0) {
@@ -927,6 +934,7 @@ function AppContent() {
         isOpen={showSettings}
         onClose={() => setShowSettings(false)}
         projects={projects}
+        initialTab={settingsInitialTab}
       />
 
       {/* Version Upgrade Modal */}

src/components/CodeEditor.jsx

@@ -10,23 +10,37 @@ import { oneDark } from '@codemirror/theme-one-dark';
 import { EditorView, showPanel, ViewPlugin } from '@codemirror/view';
 import { unifiedMergeView, getChunks } from '@codemirror/merge';
 import { showMinimap } from '@replit/codemirror-minimap';
-import { X, Save, Download, Maximize2, Minimize2, Eye, EyeOff } from 'lucide-react';
+import { X, Save, Download, Maximize2, Minimize2 } from 'lucide-react';
 import { api } from '../utils/api';
 
-function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
+function CodeEditor({ file, onClose, projectPath, isSidebar = false, isExpanded = false, onToggleExpand = null }) {
   const [content, setContent] = useState('');
   const [loading, setLoading] = useState(true);
   const [saving, setSaving] = useState(false);
   const [isFullscreen, setIsFullscreen] = useState(false);
-  const [isDarkMode, setIsDarkMode] = useState(true);
+  const [isDarkMode, setIsDarkMode] = useState(() => {
+    const savedTheme = localStorage.getItem('codeEditorTheme');
+    return savedTheme ? savedTheme === 'dark' : true;
+  });
   const [saveSuccess, setSaveSuccess] = useState(false);
   const [showDiff, setShowDiff] = useState(!!file.diffInfo);
-  const [wordWrap, setWordWrap] = useState(false);
+  const [wordWrap, setWordWrap] = useState(() => {
+    return localStorage.getItem('codeEditorWordWrap') === 'true';
+  });
+  const [minimapEnabled, setMinimapEnabled] = useState(() => {
+    return localStorage.getItem('codeEditorShowMinimap') !== 'false';
+  });
+  const [showLineNumbers, setShowLineNumbers] = useState(() => {
+    return localStorage.getItem('codeEditorLineNumbers') !== 'false';
+  });
+  const [fontSize, setFontSize] = useState(() => {
+    return localStorage.getItem('codeEditorFontSize') || '14';
+  });
   const editorRef = useRef(null);
 
   // Create minimap extension with chunk-based gutters
   const minimapExtension = useMemo(() => {
-    if (!file.diffInfo || !showDiff) return [];
+    if (!file.diffInfo || !showDiff || !minimapEnabled) return [];
 
     const gutters = {};
 
@@ -58,7 +72,7 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
         };
       })
     ];
-  }, [file.diffInfo, showDiff, isDarkMode]);
+  }, [file.diffInfo, showDiff, minimapEnabled, isDarkMode]);
 
   // Create extension to scroll to first chunk on mount
   const scrollToFirstChunkExtension = useMemo(() => {
@@ -89,24 +103,28 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
     ];
   }, [file.diffInfo, showDiff]);
 
-  // Create diff navigation panel extension
-  const diffNavigationPanel = useMemo(() => {
-    if (!file.diffInfo || !showDiff) return [];
-
+  // Create editor toolbar panel - always visible
+  const editorToolbarPanel = useMemo(() => {
     const createPanel = (view) => {
       const dom = document.createElement('div');
-      dom.className = 'cm-diff-navigation-panel';
+      dom.className = 'cm-editor-toolbar-panel';
 
       let currentIndex = 0;
 
       const updatePanel = () => {
-        // Use getChunks API to get ALL chunks regardless of viewport
-        const chunksData = getChunks(view.state);
+        // Check if we have diff info and it's enabled
+        const hasDiff = file.diffInfo && showDiff;
+        const chunksData = hasDiff ? getChunks(view.state) : null;
         const chunks = chunksData?.chunks || [];
         const chunkCount = chunks.length;
 
-        dom.innerHTML = `
-          <div style="display: flex; align-items: center; gap: 8px;">
+        // Build the toolbar HTML
+        let toolbarHTML = '<div style="display: flex; align-items: center; justify-content: space-between; width: 100%;">';
+
+        // Left side - diff navigation (if applicable)
+        toolbarHTML += '<div style="display: flex; align-items: center; gap: 8px;">';
+        if (hasDiff) {
+          toolbarHTML += `
             <span style="font-weight: 500;">${chunkCount > 0 ? `${currentIndex + 1}/${chunkCount}` : '0'} changes</span>
             <button class="cm-diff-nav-btn cm-diff-nav-prev" title="Previous change" ${chunkCount === 0 ? 'disabled' : ''}>
               <svg width="16" height="16" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -118,41 +136,110 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
               </svg>
             </button>
-          </div>
+          `;
+        }
+        toolbarHTML += '</div>';
+
+        // Right side - action buttons
+        toolbarHTML += '<div style="display: flex; align-items: center; gap: 4px;">';
+
+        // Show/hide diff button (only if there's diff info)
+        if (file.diffInfo) {
+          toolbarHTML += `
+            <button class="cm-toolbar-btn cm-toggle-diff-btn" title="${showDiff ? 'Hide diff highlighting' : 'Show diff highlighting'}">
+              <svg width="16" height="16" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                ${showDiff ?
+                  '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13.875 18.825A10.05 10.05 0 0112 19c-4.478 0-8.268-2.943-9.543-7a9.97 9.97 0 011.563-3.029m5.858.908a3 3 0 114.243 4.243M9.878 9.878l4.242 4.242M9.88 9.88l-3.29-3.29m7.532 7.532l3.29 3.29M3 3l3.59 3.59m0 0A9.953 9.953 0 0112 5c4.478 0 8.268 2.943 9.543 7a10.025 10.025 0 01-4.132 5.411m0 0L21 21" />' :
+                  '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" /><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" />'
+                }
+              </svg>
+            </button>
+          `;
+        }
+
+        // Settings button
+        toolbarHTML += `
+          <button class="cm-toolbar-btn cm-settings-btn" title="Editor Settings">
+            <svg width="16" height="16" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z" /><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+            </svg>
+          </button>
         `;
 
-        const prevBtn = dom.querySelector('.cm-diff-nav-prev');
-        const nextBtn = dom.querySelector('.cm-diff-nav-next');
+        // Expand button (only in sidebar mode)
+        if (isSidebar && onToggleExpand) {
+          toolbarHTML += `
+            <button class="cm-toolbar-btn cm-expand-btn" title="${isExpanded ? 'Collapse editor' : 'Expand editor to full width'}">
+              <svg width="16" height="16" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                ${isExpanded ?
+                  '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 9V4.5M9 9H4.5M9 9L3.75 3.75M9 15v4.5M9 15H4.5M9 15l-5.25 5.25M15 9h4.5M15 9V4.5M15 9l5.25-5.25M15 15h4.5M15 15v4.5m0-4.5l5.25 5.25" />' :
+                  '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 8V4m0 0h4M4 4l5 5m11-1V4m0 0h-4m4 0l-5 5M4 16v4m0 0h4m-4 0l5-5m11 5l-5-5m5 5v-4m0 4h-4" />'
+                }
+              </svg>
+            </button>
+          `;
+        }
 
-        prevBtn?.addEventListener('click', () => {
-          if (chunks.length === 0) return;
-          currentIndex = currentIndex > 0 ? currentIndex - 1 : chunks.length - 1;
+        toolbarHTML += '</div>';
+        toolbarHTML += '</div>';
 
-          // Navigate to the chunk - use fromB which is the position in the current document
-          const chunk = chunks[currentIndex];
-          if (chunk) {
-            // Scroll to the start of the chunk in the B side (current document)
-            view.dispatch({
-              effects: EditorView.scrollIntoView(chunk.fromB, { y: 'center' })
-            });
+        dom.innerHTML = toolbarHTML;
+
+        // Attach event listeners for diff navigation
+        if (hasDiff) {
+          const prevBtn = dom.querySelector('.cm-diff-nav-prev');
+          const nextBtn = dom.querySelector('.cm-diff-nav-next');
+
+          prevBtn?.addEventListener('click', () => {
+            if (chunks.length === 0) return;
+            currentIndex = currentIndex > 0 ? currentIndex - 1 : chunks.length - 1;
+
+            const chunk = chunks[currentIndex];
+            if (chunk) {
+              view.dispatch({
+                effects: EditorView.scrollIntoView(chunk.fromB, { y: 'center' })
+              });
+            }
+            updatePanel();
+          });
+
+          nextBtn?.addEventListener('click', () => {
+            if (chunks.length === 0) return;
+            currentIndex = currentIndex < chunks.length - 1 ? currentIndex + 1 : 0;
+
+            const chunk = chunks[currentIndex];
+            if (chunk) {
+              view.dispatch({
+                effects: EditorView.scrollIntoView(chunk.fromB, { y: 'center' })
+              });
+            }
+            updatePanel();
+          });
+        }
+
+        // Attach event listener for toggle diff button
+        if (file.diffInfo) {
+          const toggleDiffBtn = dom.querySelector('.cm-toggle-diff-btn');
+          toggleDiffBtn?.addEventListener('click', () => {
+            setShowDiff(!showDiff);
+          });
+        }
+
+        // Attach event listener for settings button
+        const settingsBtn = dom.querySelector('.cm-settings-btn');
+        settingsBtn?.addEventListener('click', () => {
+          if (window.openSettings) {
+            window.openSettings('appearance');
           }
-          updatePanel();
         });
 
-        nextBtn?.addEventListener('click', () => {
-          if (chunks.length === 0) return;
-          currentIndex = currentIndex < chunks.length - 1 ? currentIndex + 1 : 0;
-
-          // Navigate to the chunk - use fromB which is the position in the current document
-          const chunk = chunks[currentIndex];
-          if (chunk) {
-            // Scroll to the start of the chunk in the B side (current document)
-            view.dispatch({
-              effects: EditorView.scrollIntoView(chunk.fromB, { y: 'center' })
-            });
-          }
-          updatePanel();
-        });
+        // Attach event listener for expand button
+        if (isSidebar && onToggleExpand) {
+          const expandBtn = dom.querySelector('.cm-expand-btn');
+          expandBtn?.addEventListener('click', () => {
+            onToggleExpand();
+          });
+        }
       };
 
       updatePanel();
@@ -165,7 +252,7 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
     };
 
     return [showPanel.of(createPanel)];
-  }, [file.diffInfo, showDiff]);
+  }, [file.diffInfo, showDiff, isSidebar, isExpanded, onToggleExpand]);
 
   // Get language extension based on file extension
   const getLanguageExtension = (filename) => {
@@ -290,6 +377,57 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
     setIsFullscreen(!isFullscreen);
   };
 
+  // Save theme preference to localStorage
+  useEffect(() => {
+    localStorage.setItem('codeEditorTheme', isDarkMode ? 'dark' : 'light');
+  }, [isDarkMode]);
+
+  // Save word wrap preference to localStorage
+  useEffect(() => {
+    localStorage.setItem('codeEditorWordWrap', wordWrap.toString());
+  }, [wordWrap]);
+
+  // Listen for settings changes from the Settings modal
+  useEffect(() => {
+    const handleStorageChange = () => {
+      const newTheme = localStorage.getItem('codeEditorTheme');
+      if (newTheme) {
+        setIsDarkMode(newTheme === 'dark');
+      }
+
+      const newWordWrap = localStorage.getItem('codeEditorWordWrap');
+      if (newWordWrap !== null) {
+        setWordWrap(newWordWrap === 'true');
+      }
+
+      const newShowMinimap = localStorage.getItem('codeEditorShowMinimap');
+      if (newShowMinimap !== null) {
+        setMinimapEnabled(newShowMinimap !== 'false');
+      }
+
+      const newShowLineNumbers = localStorage.getItem('codeEditorLineNumbers');
+      if (newShowLineNumbers !== null) {
+        setShowLineNumbers(newShowLineNumbers !== 'false');
+      }
+
+      const newFontSize = localStorage.getItem('codeEditorFontSize');
+      if (newFontSize) {
+        setFontSize(newFontSize);
+      }
+    };
+
+    // Listen for storage events (changes from other tabs/windows)
+    window.addEventListener('storage', handleStorageChange);
+
+    // Custom event for same-window updates
+    window.addEventListener('codeEditorSettingsChanged', handleStorageChange);
+
+    return () => {
+      window.removeEventListener('storage', handleStorageChange);
+      window.removeEventListener('codeEditorSettingsChanged', handleStorageChange);
+    };
+  }, []);
+
   // Handle keyboard shortcuts
   useEffect(() => {
     const handleKeyDown = (e) => {
@@ -329,7 +467,7 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
             </div>
           </div>
         ) : (
-          <div className="fixed inset-0 z-50 md:bg-black/50 md:flex md:items-center md:justify-center">
+          <div className="fixed inset-0 z-40 md:bg-black/50 md:flex md:items-center md:justify-center">
             <div className="code-editor-loading w-full h-full md:rounded-lg md:w-auto md:h-auto p-8 flex items-center justify-center">
               <div className="flex items-center gap-3">
                 <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-blue-600"></div>
@@ -381,8 +519,8 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
             background-color: ${isDarkMode ? '#1e1e1e' : '#f5f5f5'};
           }
 
-          /* Diff navigation panel styling */
-          .cm-diff-navigation-panel {
+          /* Editor toolbar panel styling */
+          .cm-editor-toolbar-panel {
             padding: 8px 12px;
             background-color: ${isDarkMode ? '#1f2937' : '#ffffff'};
             border-bottom: 1px solid ${isDarkMode ? '#374151' : '#e5e7eb'};
@@ -390,7 +528,8 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
             font-size: 14px;
           }
 
-          .cm-diff-nav-btn {
+          .cm-diff-nav-btn,
+          .cm-toolbar-btn {
             padding: 4px;
             background: transparent;
             border: none;
@@ -400,9 +539,11 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
             align-items: center;
             justify-content: center;
             color: inherit;
+            transition: background-color 0.2s;
           }
 
-          .cm-diff-nav-btn:hover {
+          .cm-diff-nav-btn:hover,
+          .cm-toolbar-btn:hover {
             background-color: ${isDarkMode ? '#374151' : '#f3f4f6'};
           }
 
@@ -414,7 +555,7 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
       </style>
       <div className={isSidebar ?
         'w-full h-full flex flex-col' :
-        `fixed inset-0 z-50 ${
+        `fixed inset-0 z-40 ${
           // Mobile: native fullscreen, Desktop: modal with backdrop
           'md:bg-black/50 md:flex md:items-center md:justify-center md:p-4'
         } ${isFullscreen ? 'md:p-0' : ''}`}>
@@ -433,7 +574,7 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
                 <h3 className="font-medium text-gray-900 dark:text-white truncate">{file.name}</h3>
                 {file.diffInfo && (
                   <span className="text-xs bg-blue-100 dark:bg-blue-900 text-blue-600 dark:text-blue-300 px-2 py-1 rounded whitespace-nowrap">
-                    📝 Has changes
+                    Showing changes
                   </span>
                 )}
               </div>
@@ -442,36 +583,6 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
           </div>
 
           <div className="flex items-center gap-1 md:gap-2 flex-shrink-0">
-            {file.diffInfo && (
-              <button
-                onClick={() => setShowDiff(!showDiff)}
-                className="p-2 md:p-2 text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white rounded-md hover:bg-gray-100 dark:hover:bg-gray-800 min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex items-center justify-center"
-                title={showDiff ? "Hide diff highlighting" : "Show diff highlighting"}
-              >
-                {showDiff ? <EyeOff className="w-5 h-5 md:w-4 md:h-4" /> : <Eye className="w-5 h-5 md:w-4 md:h-4" />}
-              </button>
-            )}
-
-            <button
-              onClick={() => setWordWrap(!wordWrap)}
-              className={`p-2 md:p-2 rounded-md hover:bg-gray-100 min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex items-center justify-center ${
-                wordWrap
-                  ? 'text-blue-600 bg-blue-50'
-                  : 'text-gray-600 hover:text-gray-900'
-              }`}
-              title={wordWrap ? 'Disable word wrap' : 'Enable word wrap'}
-            >
-              <span className="text-sm md:text-xs font-mono font-bold">↵</span>
-            </button>
-
-            <button
-              onClick={() => setIsDarkMode(!isDarkMode)}
-              className="p-2 md:p-2 text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white rounded-md hover:bg-gray-100 dark:hover:bg-gray-800 min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex items-center justify-center"
-              title="Toggle theme"
-            >
-              <span className="text-lg md:text-base">{isDarkMode ? '☀️' : '🌙'}</span>
-            </button>
-
             <button
               onClick={handleDownload}
               className="p-2 md:p-2 text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white rounded-md hover:bg-gray-100 dark:hover:bg-gray-800 min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex items-center justify-center"
@@ -532,6 +643,9 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
             onChange={setContent}
             extensions={[
               ...getLanguageExtension(file.name),
+              // Always show the toolbar
+              ...editorToolbarPanel,
+              // Only show diff-related extensions when diff is enabled
               ...(file.diffInfo && showDiff && file.diffInfo.old_string !== undefined
                 ? [
                     unifiedMergeView({
@@ -543,8 +657,7 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
                       // NOTE: NO collapseUnchanged - this shows the full file!
                     }),
                     ...minimapExtension,
-                    ...scrollToFirstChunkExtension,
-                    ...diffNavigationPanel
+                    ...scrollToFirstChunkExtension
                   ]
                 : []),
               ...(wordWrap ? [EditorView.lineWrapping] : [])
@@ -552,11 +665,11 @@ function CodeEditor({ file, onClose, projectPath, isSidebar = false }) {
             theme={isDarkMode ? oneDark : undefined}
             height="100%"
             style={{
-              fontSize: '14px',
+              fontSize: `${fontSize}px`,
               height: '100%',
             }}
             basicSetup={{
-              lineNumbers: true,
+              lineNumbers: showLineNumbers,
               foldGutter: true,
               dropCursor: false,
               allowMultipleSelections: false,

src/components/MainContent.jsx

@@ -63,6 +63,7 @@ function MainContent({
   const [showTaskDetail, setShowTaskDetail] = useState(false);
   const [editorWidth, setEditorWidth] = useState(600);
   const [isResizing, setIsResizing] = useState(false);
+  const [editorExpanded, setEditorExpanded] = useState(false);
   const resizeRef = useRef(null);
   
   // PRD Editor state
@@ -130,6 +131,11 @@ function MainContent({
 
   const handleCloseEditor = () => {
     setEditingFile(null);
+    setEditorExpanded(false);
+  };
+
+  const handleToggleEditorExpand = () => {
+    setEditorExpanded(!editorExpanded);
   };
 
   const handleTaskClick = (task) => {
@@ -461,7 +467,7 @@ function MainContent({
       {/* Content Area with Right Sidebar */}
       <div className="flex-1 flex min-h-0 overflow-hidden">
         {/* Main Content */}
-        <div className={`flex-1 flex flex-col min-h-0 overflow-hidden ${editingFile ? 'mr-0' : ''}`}>
+        <div className={`flex-1 flex flex-col min-h-0 overflow-hidden ${editingFile ? 'mr-0' : ''} ${editorExpanded ? 'hidden' : ''}`}>
           <div className={`h-full ${activeTab === 'chat' ? 'block' : 'hidden'}`}>
             <ErrorBoundary showDetails={true}>
               <ChatInterface
@@ -569,27 +575,31 @@ function MainContent({
         {/* Code Editor Right Sidebar - Desktop only, Mobile uses modal */}
         {editingFile && !isMobile && (
           <>
-            {/* Resize Handle */}
-            <div
-              ref={resizeRef}
-              onMouseDown={handleMouseDown}
-              className="flex-shrink-0 w-1 bg-gray-200 dark:bg-gray-700 hover:bg-blue-500 dark:hover:bg-blue-600 cursor-col-resize transition-colors relative group"
-              title="Drag to resize"
-            >
-              {/* Visual indicator on hover */}
-              <div className="absolute inset-y-0 left-1/2 -translate-x-1/2 w-1 bg-blue-500 dark:bg-blue-600 opacity-0 group-hover:opacity-100 transition-opacity" />
-            </div>
+            {/* Resize Handle - Hidden when expanded */}
+            {!editorExpanded && (
+              <div
+                ref={resizeRef}
+                onMouseDown={handleMouseDown}
+                className="flex-shrink-0 w-1 bg-gray-200 dark:bg-gray-700 hover:bg-blue-500 dark:hover:bg-blue-600 cursor-col-resize transition-colors relative group"
+                title="Drag to resize"
+              >
+                {/* Visual indicator on hover */}
+                <div className="absolute inset-y-0 left-1/2 -translate-x-1/2 w-1 bg-blue-500 dark:bg-blue-600 opacity-0 group-hover:opacity-100 transition-opacity" />
+              </div>
+            )}
 
             {/* Editor Sidebar */}
             <div
-              className="flex-shrink-0 border-l border-gray-200 dark:border-gray-700 h-full overflow-hidden"
-              style={{ width: `${editorWidth}px` }}
+              className={`flex-shrink-0 border-l border-gray-200 dark:border-gray-700 h-full overflow-hidden ${editorExpanded ? 'flex-1' : ''}`}
+              style={editorExpanded ? {} : { width: `${editorWidth}px` }}
             >
               <CodeEditor
                 file={editingFile}
                 onClose={handleCloseEditor}
                 projectPath={selectedProject?.path}
                 isSidebar={true}
+                isExpanded={editorExpanded}
+                onToggleExpand={handleToggleEditorExpand}
               />
             </div>
           </>

src/components/QuickSettingsPanel.jsx

@@ -112,7 +112,7 @@ const QuickSettingsPanel = ({
                   type="checkbox"
                   checked={autoExpandTools}
                   onChange={(e) => onAutoExpandChange(e.target.checked)}
-                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 dark:focus:ring-blue-400 dark:bg-gray-800 dark:checked:bg-blue-600"
+                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 focus:ring-2 dark:focus:ring-blue-400 bg-gray-100 dark:bg-gray-800 checked:bg-blue-600 dark:checked:bg-blue-600"
                 />
               </label>
 
@@ -125,7 +125,7 @@ const QuickSettingsPanel = ({
                   type="checkbox"
                   checked={showRawParameters}
                   onChange={(e) => onShowRawParametersChange(e.target.checked)}
-                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 dark:focus:ring-blue-400 dark:bg-gray-800 dark:checked:bg-blue-600"
+                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 focus:ring-2 dark:focus:ring-blue-400 bg-gray-100 dark:bg-gray-800 checked:bg-blue-600 dark:checked:bg-blue-600"
                 />
               </label>
 
@@ -138,7 +138,7 @@ const QuickSettingsPanel = ({
                   type="checkbox"
                   checked={showThinking}
                   onChange={(e) => onShowThinkingChange(e.target.checked)}
-                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 dark:focus:ring-blue-400 dark:bg-gray-800 dark:checked:bg-blue-600"
+                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 focus:ring-2 dark:focus:ring-blue-400 bg-gray-100 dark:bg-gray-800 checked:bg-blue-600 dark:checked:bg-blue-600"
                 />
               </label>
             </div>
@@ -155,7 +155,7 @@ const QuickSettingsPanel = ({
                   type="checkbox"
                   checked={autoScrollToBottom}
                   onChange={(e) => onAutoScrollChange(e.target.checked)}
-                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 dark:focus:ring-blue-400 dark:bg-gray-800 dark:checked:bg-blue-600"
+                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 focus:ring-2 dark:focus:ring-blue-400 bg-gray-100 dark:bg-gray-800 checked:bg-blue-600 dark:checked:bg-blue-600"
                 />
               </label>
             </div>
@@ -173,7 +173,7 @@ const QuickSettingsPanel = ({
                   type="checkbox"
                   checked={sendByCtrlEnter}
                   onChange={(e) => onSendByCtrlEnterChange(e.target.checked)}
-                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 dark:focus:ring-blue-400 dark:bg-gray-800 dark:checked:bg-blue-600"
+                  className="h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 dark:text-blue-500 focus:ring-blue-500 focus:ring-2 dark:focus:ring-blue-400 bg-gray-100 dark:bg-gray-800 checked:bg-blue-600 dark:checked:bg-blue-600"
                 />
               </label>
               <p className="text-xs text-gray-500 dark:text-gray-400 ml-3">

src/components/Settings.jsx

@@ -10,7 +10,7 @@ import ClaudeLogo from './ClaudeLogo';
 import CursorLogo from './CursorLogo';
 import CredentialsSettings from './CredentialsSettings';
 
-function Settings({ isOpen, onClose, projects = [] }) {
+function Settings({ isOpen, onClose, projects = [], initialTab = 'tools' }) {
   const { isDarkMode, toggleDarkMode } = useTheme();
   const { 
     tasksEnabled, 
@@ -52,10 +52,27 @@ function Settings({ isOpen, onClose, projects = [] }) {
   const [mcpTestResults, setMcpTestResults] = useState({});
   const [mcpServerTools, setMcpServerTools] = useState({});
   const [mcpToolsLoading, setMcpToolsLoading] = useState({});
-  const [activeTab, setActiveTab] = useState('tools');
+  const [activeTab, setActiveTab] = useState(initialTab);
   const [jsonValidationError, setJsonValidationError] = useState('');
   const [toolsProvider, setToolsProvider] = useState('claude'); // 'claude' or 'cursor'
 
+  // Code Editor settings
+  const [codeEditorTheme, setCodeEditorTheme] = useState(() =>
+    localStorage.getItem('codeEditorTheme') || 'dark'
+  );
+  const [codeEditorWordWrap, setCodeEditorWordWrap] = useState(() =>
+    localStorage.getItem('codeEditorWordWrap') === 'true'
+  );
+  const [codeEditorShowMinimap, setCodeEditorShowMinimap] = useState(() =>
+    localStorage.getItem('codeEditorShowMinimap') !== 'false' // Default true
+  );
+  const [codeEditorLineNumbers, setCodeEditorLineNumbers] = useState(() =>
+    localStorage.getItem('codeEditorLineNumbers') !== 'false' // Default true
+  );
+  const [codeEditorFontSize, setCodeEditorFontSize] = useState(() =>
+    localStorage.getItem('codeEditorFontSize') || '14'
+  );
+  
   // Cursor-specific states
   const [cursorAllowedCommands, setCursorAllowedCommands] = useState([]);
   const [cursorDisallowedCommands, setCursorDisallowedCommands] = useState([]);
@@ -327,8 +344,36 @@ function Settings({ isOpen, onClose, projects = [] }) {
   useEffect(() => {
     if (isOpen) {
       loadSettings();
+      // Set the active tab when the modal opens
+      setActiveTab(initialTab);
     }
-  }, [isOpen]);
+  }, [isOpen, initialTab]);
+
+  // Persist code editor settings to localStorage
+  useEffect(() => {
+    localStorage.setItem('codeEditorTheme', codeEditorTheme);
+    window.dispatchEvent(new Event('codeEditorSettingsChanged'));
+  }, [codeEditorTheme]);
+
+  useEffect(() => {
+    localStorage.setItem('codeEditorWordWrap', codeEditorWordWrap.toString());
+    window.dispatchEvent(new Event('codeEditorSettingsChanged'));
+  }, [codeEditorWordWrap]);
+
+  useEffect(() => {
+    localStorage.setItem('codeEditorShowMinimap', codeEditorShowMinimap.toString());
+    window.dispatchEvent(new Event('codeEditorSettingsChanged'));
+  }, [codeEditorShowMinimap]);
+
+  useEffect(() => {
+    localStorage.setItem('codeEditorLineNumbers', codeEditorLineNumbers.toString());
+    window.dispatchEvent(new Event('codeEditorSettingsChanged'));
+  }, [codeEditorLineNumbers]);
+
+  useEffect(() => {
+    localStorage.setItem('codeEditorFontSize', codeEditorFontSize);
+    window.dispatchEvent(new Event('codeEditorSettingsChanged'));
+  }, [codeEditorFontSize]);
 
   const loadSettings = async () => {
     try {
@@ -625,7 +670,7 @@ function Settings({ isOpen, onClose, projects = [] }) {
   if (!isOpen) return null;
 
   return (
-    <div className="modal-backdrop fixed inset-0 flex items-center justify-center z-[100] md:p-4 bg-background/95">
+    <div className="modal-backdrop fixed inset-0 flex items-center justify-center z-[9999] md:p-4 bg-background/95">
       <div className="bg-background border border-border md:rounded-lg shadow-xl w-full md:max-w-4xl h-full md:h-[90vh] flex flex-col">
         <div className="flex items-center justify-between p-4 md:p-6 border-b border-border flex-shrink-0">
           <div className="flex items-center gap-3">
@@ -758,6 +803,158 @@ function Settings({ isOpen, onClose, projects = [] }) {
         </div>
       </div>
     </div>
+
+    {/* Code Editor Settings */}
+    <div className="space-y-4">
+      <h3 className="text-lg font-semibold text-foreground">Code Editor</h3>
+
+      {/* Editor Theme */}
+      <div className="bg-gray-50 dark:bg-gray-900/50 border border-gray-200 dark:border-gray-700 rounded-lg p-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <div className="font-medium text-foreground">
+              Editor Theme
+            </div>
+            <div className="text-sm text-muted-foreground">
+              Default theme for the code editor
+            </div>
+          </div>
+          <button
+            onClick={() => setCodeEditorTheme(codeEditorTheme === 'dark' ? 'light' : 'dark')}
+            className="relative inline-flex h-8 w-14 items-center rounded-full bg-gray-200 dark:bg-gray-700 transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900"
+            role="switch"
+            aria-checked={codeEditorTheme === 'dark'}
+            aria-label="Toggle editor theme"
+          >
+            <span className="sr-only">Toggle editor theme</span>
+            <span
+              className={`${
+                codeEditorTheme === 'dark' ? 'translate-x-7' : 'translate-x-1'
+              } inline-block h-6 w-6 transform rounded-full bg-white shadow-lg transition-transform duration-200 flex items-center justify-center`}
+            >
+              {codeEditorTheme === 'dark' ? (
+                <Moon className="w-3.5 h-3.5 text-gray-700" />
+              ) : (
+                <Sun className="w-3.5 h-3.5 text-yellow-500" />
+              )}
+            </span>
+          </button>
+        </div>
+      </div>
+
+      {/* Word Wrap */}
+      <div className="bg-gray-50 dark:bg-gray-900/50 border border-gray-200 dark:border-gray-700 rounded-lg p-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <div className="font-medium text-foreground">
+              Word Wrap
+            </div>
+            <div className="text-sm text-muted-foreground">
+              Enable word wrapping by default in the editor
+            </div>
+          </div>
+          <button
+            onClick={() => setCodeEditorWordWrap(!codeEditorWordWrap)}
+            className="relative inline-flex h-8 w-14 items-center rounded-full bg-gray-200 dark:bg-gray-700 transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900"
+            role="switch"
+            aria-checked={codeEditorWordWrap}
+            aria-label="Toggle word wrap"
+          >
+            <span className="sr-only">Toggle word wrap</span>
+            <span
+              className={`${
+                codeEditorWordWrap ? 'translate-x-7' : 'translate-x-1'
+              } inline-block h-6 w-6 transform rounded-full bg-white shadow-lg transition-transform duration-200`}
+            />
+          </button>
+        </div>
+      </div>
+
+      {/* Show Minimap */}
+      <div className="bg-gray-50 dark:bg-gray-900/50 border border-gray-200 dark:border-gray-700 rounded-lg p-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <div className="font-medium text-foreground">
+              Show Minimap
+            </div>
+            <div className="text-sm text-muted-foreground">
+              Display a minimap for easier navigation in diff view
+            </div>
+          </div>
+          <button
+            onClick={() => setCodeEditorShowMinimap(!codeEditorShowMinimap)}
+            className="relative inline-flex h-8 w-14 items-center rounded-full bg-gray-200 dark:bg-gray-700 transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900"
+            role="switch"
+            aria-checked={codeEditorShowMinimap}
+            aria-label="Toggle minimap"
+          >
+            <span className="sr-only">Toggle minimap</span>
+            <span
+              className={`${
+                codeEditorShowMinimap ? 'translate-x-7' : 'translate-x-1'
+              } inline-block h-6 w-6 transform rounded-full bg-white shadow-lg transition-transform duration-200`}
+            />
+          </button>
+        </div>
+      </div>
+
+      {/* Show Line Numbers */}
+      <div className="bg-gray-50 dark:bg-gray-900/50 border border-gray-200 dark:border-gray-700 rounded-lg p-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <div className="font-medium text-foreground">
+              Show Line Numbers
+            </div>
+            <div className="text-sm text-muted-foreground">
+              Display line numbers in the editor
+            </div>
+          </div>
+          <button
+            onClick={() => setCodeEditorLineNumbers(!codeEditorLineNumbers)}
+            className="relative inline-flex h-8 w-14 items-center rounded-full bg-gray-200 dark:bg-gray-700 transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900"
+            role="switch"
+            aria-checked={codeEditorLineNumbers}
+            aria-label="Toggle line numbers"
+          >
+            <span className="sr-only">Toggle line numbers</span>
+            <span
+              className={`${
+                codeEditorLineNumbers ? 'translate-x-7' : 'translate-x-1'
+              } inline-block h-6 w-6 transform rounded-full bg-white shadow-lg transition-transform duration-200`}
+            />
+          </button>
+        </div>
+      </div>
+
+      {/* Font Size */}
+      <div className="bg-gray-50 dark:bg-gray-900/50 border border-gray-200 dark:border-gray-700 rounded-lg p-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <div className="font-medium text-foreground">
+              Font Size
+            </div>
+            <div className="text-sm text-muted-foreground">
+              Editor font size in pixels
+            </div>
+          </div>
+          <select
+            value={codeEditorFontSize}
+            onChange={(e) => setCodeEditorFontSize(e.target.value)}
+            className="text-sm bg-gray-50 dark:bg-gray-800 border border-gray-300 dark:border-gray-600 text-gray-900 dark:text-gray-100 rounded-lg focus:ring-blue-500 focus:border-blue-500 p-2 w-24"
+          >
+            <option value="10">10px</option>
+            <option value="11">11px</option>
+            <option value="12">12px</option>
+            <option value="13">13px</option>
+            <option value="14">14px</option>
+            <option value="15">15px</option>
+            <option value="16">16px</option>
+            <option value="18">18px</option>
+            <option value="20">20px</option>
+          </select>
+        </div>
+      </div>
+    </div>
   </div>
 )}
 
@@ -818,7 +1015,7 @@ function Settings({ isOpen, onClose, projects = [] }) {
                     type="checkbox"
                     checked={skipPermissions}
                     onChange={(e) => setSkipPermissions(e.target.checked)}
-                    className="w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 rounded focus:ring-blue-500"
+                    className="w-4 h-4 text-blue-600 bg-gray-100 dark:bg-gray-700 border-gray-300 dark:border-gray-600 rounded focus:ring-blue-500 focus:ring-2 checked:bg-blue-600 dark:checked:bg-blue-600"
                   />
                   <div>
                     <div className="font-medium text-orange-900 dark:text-orange-100">
@@ -1578,7 +1775,7 @@ function Settings({ isOpen, onClose, projects = [] }) {
                         type="checkbox"
                         checked={cursorSkipPermissions}
                         onChange={(e) => setCursorSkipPermissions(e.target.checked)}
-                        className="w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 rounded focus:ring-blue-500"
+                        className="w-4 h-4 text-blue-600 bg-gray-100 dark:bg-gray-700 border-gray-300 dark:border-gray-600 rounded focus:ring-blue-500 focus:ring-2 checked:bg-blue-600 dark:checked:bg-blue-600"
                       />
                       <div>
                         <div className="font-medium text-orange-900 dark:text-orange-100">