Add unified search panel, context menus, highlight color picker, and bug fixes

- Search results panel: bottom slide-up overlay listing matches with navigation
- Context menus: file context menu for tabs and folder tree (copy name/path/content, show in folder)
- Terminal copy/paste/select-all via custom key event handler
- Highlight color picker: clickable swatch opens native color input
- Bug fixes: advanced filter empty rule stripping, case-insensitive levels, save-to-notes append

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

Author: ozgesolidkey

src/main/index.ts

@@ -1611,6 +1611,26 @@ ipcMain.handle('open-external-url', async (_, url: string) => {
   }
 });
 
+// Show file in OS file manager
+ipcMain.handle('show-item-in-folder', async (_, filePath: string) => {
+  shell.showItemInFolder(filePath);
+});
+
+// Read entire file content (for Copy All)
+ipcMain.handle('read-file-content', async (_, filePath: string) => {
+  try {
+    const stats = fs.statSync(filePath);
+    const sizeMB = stats.size / (1024 * 1024);
+    if (sizeMB > 50) {
+      return { success: false, error: 'File too large to copy (>50MB)' };
+    }
+    const content = fs.readFileSync(filePath, 'utf-8');
+    return { success: true, content, sizeMB };
+  } catch (error) {
+    return { success: false, error: String(error) };
+  }
+});
+
 // === Save Selected Lines ===
 
 ipcMain.handle('save-selected-lines', async (_, startLine: number, endLine: number, columnConfig?: ColumnConfig) => {
@@ -1817,20 +1837,8 @@ ipcMain.handle('save-to-notes', async (
       content += newEntry;
       fs.writeFileSync(notesFilePath, content, 'utf-8');
     } else {
-      // Insert entry in line-number order among existing entries
-      const existing = fs.readFileSync(notesFilePath, 'utf-8');
-      const entryRegex = /\n--- \[.*?\] Lines (\d+)-/g;
-      let insertPos = existing.length; // default: append at end
-      let match;
-      while ((match = entryRegex.exec(existing)) !== null) {
-        const entryStartLine = parseInt(match[1], 10);
-        if (entryStartLine > startLine + 1) {
-          insertPos = match.index;
-          break;
-        }
-      }
-      const result = existing.substring(0, insertPos) + newEntry + existing.substring(insertPos);
-      fs.writeFileSync(notesFilePath, result, 'utf-8');
+      // Simple append to existing file
+      fs.appendFileSync(notesFilePath, newEntry, 'utf-8');
     }
 
     // Invalidate cache for this file so it gets re-indexed with new content
@@ -1969,9 +1977,9 @@ function compileAdvancedFilter(config: AdvancedFilterConfig): CompiledMatcher {
           return (text: string, _level: string) =>
             !(rule.caseSensitive ? text : text.toLowerCase()).includes(pattern);
         case 'level':
-          return (_text: string, level: string) => level === rule.value;
+          return (_text: string, level: string) => level.toLowerCase() === rule.value.toLowerCase();
         case 'not_level':
-          return (_text: string, level: string) => level !== rule.value;
+          return (_text: string, level: string) => level.toLowerCase() !== rule.value.toLowerCase();
         default:
           return (_text: string, _level: string) => true;
       }

src/preload/index.ts

@@ -311,6 +311,13 @@ const api = {
   saveNotes: (content: string): Promise<{ success: boolean; error?: string }> =>
     ipcRenderer.invoke('save-notes', content),
 
+  // File context menu actions
+  showItemInFolder: (filePath: string): Promise<void> =>
+    ipcRenderer.invoke('show-item-in-folder', filePath),
+
+  readFileContent: (filePath: string): Promise<{ success: boolean; content?: string; sizeMB?: number; error?: string }> =>
+    ipcRenderer.invoke('read-file-content', filePath),
+
   // Window controls
   windowMinimize: (): Promise<void> => ipcRenderer.invoke('window-minimize'),
   windowMaximize: (): Promise<void> => ipcRenderer.invoke('window-maximize'),

src/renderer/index.html

@@ -347,6 +347,19 @@ <h2>LOGAN</h2>
       </div>
     </div>
 
+    <!-- Search Results Panel (slide-up from bottom) -->
+    <div id="search-results-overlay" class="search-results-overlay hidden">
+      <div id="search-results-panel" class="search-results-panel">
+        <div id="search-results-resize-handle" class="search-results-resize-handle-top"></div>
+        <div class="search-results-header">
+          <span class="search-results-title">Search Results</span>
+          <span id="search-results-summary" class="search-results-summary"></span>
+          <button id="btn-search-results-close" class="search-results-close-btn" title="Close (Esc)">&times;</button>
+        </div>
+        <div id="search-results-list" class="search-results-list"></div>
+      </div>
+    </div>
+
     <!-- Status Bar -->
     <footer class="status-bar">
       <div class="status-left">
@@ -590,7 +603,8 @@ <h4>Terminal & Notes</h4>
             <div class="shortcut-list">
               <div class="shortcut-item"><kbd>Ctrl</kbd>+<kbd>`</kbd><span>Toggle terminal panel</span></div>
               <div class="shortcut-item"><kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>N</kbd><span>Toggle notes drawer</span></div>
-              <div class="shortcut-item"><kbd>Esc</kbd><span>Close terminal/notes (when focused)</span></div>
+              <div class="shortcut-item"><kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>R</kbd><span>Toggle search results panel</span></div>
+              <div class="shortcut-item"><kbd>Esc</kbd><span>Close terminal/notes/search results (when focused)</span></div>
             </div>
           </div>
           <div class="help-section">