chore(frontend): introduce prettier + eslint and prune unused code

- Add Prettier 3 with prettier-plugin-organize-imports (sorts/removes unused imports)
- Add ESLint 10 flat config with typescript-eslint + eslint-plugin-vue + eslint-config-prettier
- Add root scripts: format, format:check, lint, lint:fix
- Reformat 257 files across admin-web, ops-web, desktop-client, packages
- Remove unused locals/exports flagged by --noUnusedLocals/--noUnusedParameters
- Fix duplicate localTabLabel key, surrogate-pair regex u-flag, NBSP literal in regex
- Skip server/ (Go) and apps/browser-extension/ (deprecated per ADR)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/src/main/review-window.ts

@@ -1,29 +1,29 @@
-import { BrowserWindow, nativeTheme } from "electron/main";
-import type { Session } from "electron/main";
+import type { Session } from 'electron/main'
+import { BrowserWindow, nativeTheme } from 'electron/main'
 
-import { attachWindowDiagnostics, loadWindowURLSafely } from "./external-window";
+import { attachWindowDiagnostics, loadWindowURLSafely } from './external-window'
 
 interface ReviewWindowRecord {
-  taskId: string;
-  window: BrowserWindow;
+  taskId: string
+  window: BrowserWindow
 }
 
-const reviewWindows = new Map<string, ReviewWindowRecord>();
+const reviewWindows = new Map<string, ReviewWindowRecord>()
 
 export async function openReviewWindow(options: {
-  taskId: string;
-  title: string;
-  url: string;
-  session: Session;
+  taskId: string
+  title: string
+  url: string
+  session: Session
 }): Promise<void> {
-  const existing = reviewWindows.get(options.taskId);
+  const existing = reviewWindows.get(options.taskId)
   if (existing && !existing.window.isDestroyed()) {
-    existing.window.show();
-    existing.window.focus();
+    existing.window.show()
+    existing.window.focus()
     if (existing.window.webContents.getURL() !== options.url) {
-      await loadWindowURLSafely(existing.window, options.url, options.title);
+      await loadWindowURLSafely(existing.window, options.url, options.title)
     }
-    return;
+    return
   }
 
   const window = new BrowserWindow({
@@ -33,22 +33,22 @@ export async function openReviewWindow(options: {
     minHeight: 760,
     title: options.title,
     autoHideMenuBar: true,
-    backgroundColor: nativeTheme.shouldUseDarkColors ? "#15191a" : "#f4f1ea",
+    backgroundColor: nativeTheme.shouldUseDarkColors ? '#15191a' : '#f4f1ea',
     webPreferences: {
       session: options.session,
       sandbox: true,
       contextIsolation: true,
       nodeIntegration: false,
     },
-  });
+  })
 
-  attachWindowDiagnostics(window, options.title);
-  reviewWindows.set(options.taskId, { taskId: options.taskId, window });
-  window.on("closed", () => {
-    reviewWindows.delete(options.taskId);
-  });
+  attachWindowDiagnostics(window, options.title)
+  reviewWindows.set(options.taskId, { taskId: options.taskId, window })
+  window.on('closed', () => {
+    reviewWindows.delete(options.taskId)
+  })
 
-  await loadWindowURLSafely(window, options.url, options.title);
-  window.show();
-  window.focus();
+  await loadWindowURLSafely(window, options.url, options.title)
+  window.show()
+  window.focus()
 }