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/execution-devtools.ts

@@ -1,45 +1,45 @@
-import { app } from "electron/main";
-import type { WebContents } from "electron/main";
+import type { WebContents } from 'electron/main'
+import { app } from 'electron/main'
 
 function normalizeBooleanEnv(value: string | undefined): boolean | null {
   if (!value) {
-    return null;
+    return null
   }
 
-  const normalized = value.trim().toLowerCase();
-  if (["1", "true", "yes", "on"].includes(normalized)) {
-    return true;
+  const normalized = value.trim().toLowerCase()
+  if (['1', 'true', 'yes', 'on'].includes(normalized)) {
+    return true
   }
-  if (["0", "false", "no", "off"].includes(normalized)) {
-    return false;
+  if (['0', 'false', 'no', 'off'].includes(normalized)) {
+    return false
   }
-  return null;
+  return null
 }
 
 export function shouldAutoOpenExecutionDevtools(): boolean {
   if (app.isPackaged) {
-    return false;
+    return false
   }
 
-  const explicit = normalizeBooleanEnv(process.env.GEO_DESKTOP_EXECUTION_DEVTOOLS);
+  const explicit = normalizeBooleanEnv(process.env.GEO_DESKTOP_EXECUTION_DEVTOOLS)
   if (explicit !== null) {
-    return explicit;
+    return explicit
   }
 
-  return Boolean(process.env.ELECTRON_RENDERER_URL);
+  return Boolean(process.env.ELECTRON_RENDERER_URL)
 }
 
 export function shouldAutoOpenBackgroundExecutionDevtools(): boolean {
   if (app.isPackaged) {
-    return false;
+    return false
   }
 
-  const explicit = normalizeBooleanEnv(process.env.GEO_DESKTOP_EXECUTION_DEVTOOLS);
+  const explicit = normalizeBooleanEnv(process.env.GEO_DESKTOP_EXECUTION_DEVTOOLS)
   if (explicit !== null) {
-    return explicit;
+    return explicit
   }
 
-  return false;
+  return false
 }
 
 export function maybeOpenExecutionDevtools(
@@ -49,18 +49,18 @@ export function maybeOpenExecutionDevtools(
 ): void {
   const allowOpen = options.background
     ? shouldAutoOpenBackgroundExecutionDevtools()
-    : shouldAutoOpenExecutionDevtools();
+    : shouldAutoOpenExecutionDevtools()
   if (!allowOpen) {
-    return;
+    return
   }
   if (webContents.isDestroyed() || webContents.isDevToolsOpened()) {
-    return;
+    return
   }
 
   try {
-    webContents.openDevTools({ mode: "detach" });
-    console.info("[desktop-devtools] opened execution devtools", { label });
+    webContents.openDevTools({ mode: 'detach' })
+    console.info('[desktop-devtools] opened execution devtools', { label })
   } catch (error) {
-    console.warn("[desktop-devtools] failed to open execution devtools", { label, error });
+    console.warn('[desktop-devtools] failed to open execution devtools', { label, error })
   }
 }