fix: updated UI to macosx conventions

src/main/ipc/handlers.ts

@@ -1,4 +1,4 @@
-import { app, ipcMain, dialog, shell } from 'electron';
+import { app, BrowserWindow, ipcMain, dialog, shell } from 'electron';
 import * as path from 'path';
 import * as fsPromises from 'fs/promises';
 import { eq } from 'drizzle-orm';
@@ -697,6 +697,20 @@ export function registerIpcHandlers(): void {
     return projectEngine.getDefaultProjectBaseDir(projectId);
   });
 
+  safeHandle('app:getTitleBarMetrics', async (event) => {
+    const ownerWindow = BrowserWindow.fromWebContents(event.sender);
+    const buttonPosition = ownerWindow?.getWindowButtonPosition?.();
+    if (!buttonPosition) {
+      return null;
+    }
+
+    const estimatedClusterWidth = Math.max(52, Math.round(buttonPosition.y * 4));
+    const trailingPadding = Math.max(8, Math.round(buttonPosition.y * 0.6));
+    const macosLeftInset = Math.max(0, Math.round(buttonPosition.x + estimatedClusterWidth + trailingPadding));
+
+    return { macosLeftInset };
+  });
+
   safeHandle('app:showItemInFolder', async (_, itemPath: string) => {
     return shell.showItemInFolder(itemPath);
   });

src/main/preload.ts

@@ -137,6 +137,7 @@ export const electronAPI: ElectronAPI = {
   // App
   app: {
     getDataPaths: () => ipcRenderer.invoke('app:getDataPaths'),
+    getTitleBarMetrics: () => ipcRenderer.invoke('app:getTitleBarMetrics'),
     openFolder: (folderPath: string) => ipcRenderer.invoke('app:openFolder', folderPath),
     showItemInFolder: (itemPath: string) => ipcRenderer.invoke('app:showItemInFolder', itemPath),
     selectFolder: (title?: string) => ipcRenderer.invoke('app:selectFolder', title),

src/main/shared/electronApi.ts

@@ -505,6 +505,7 @@ export interface ElectronAPI {
   };
   app: {
     getDataPaths: () => Promise<{ database: string; posts: string; media: string }>;
+    getTitleBarMetrics: () => Promise<{ macosLeftInset: number } | null>;
     openFolder: (folderPath: string) => Promise<string>;
     showItemInFolder: (itemPath: string) => Promise<void>;
     selectFolder: (title?: string) => Promise<string | null>;