Format code with Prettier (8 modified files from H1 decomposition)

Aligns with CC2 enforcement: ESLint + Prettier + noImplicitAny now enforced.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/main/ytdlp.ts

@@ -2,6 +2,7 @@ import { execFile } from 'child_process'
 import { existsSync, mkdirSync, copyFileSync } from 'fs'
 import { dirname } from 'path'
 import { getYtdlpPath, getBundledYtdlpPath, YTDLP_MISSING_MSG } from './binaries'
+import { VERSION_TIMEOUT_MS, YTDLP_UPDATE_TIMEOUT_MS } from './constants'
 import { getSettings, setSettings } from './settings'
 import { shouldAutoCheckYtdlp } from './ytdlpPolicy'
 import {
@@ -47,7 +48,7 @@ export function getYtdlpVersion(): Promise<YtdlpVersionResult> {
     execFile(
       ytdlpPath,
       ['--version'],
-      { windowsHide: true, timeout: 15_000 },
+      { windowsHide: true, timeout: VERSION_TIMEOUT_MS },
       (err, stdout, stderr) => {
         if (err) {
           const msg = (err as { killed?: boolean }).killed
@@ -93,7 +94,7 @@ export function updateYtdlp(channel: YtdlpUpdateChannel): Promise<YtdlpUpdateRes
     execFile(
       ytdlpPath,
       ['--update-to', channel],
-      { windowsHide: true, timeout: 60_000 },
+      { windowsHide: true, timeout: YTDLP_UPDATE_TIMEOUT_MS },
       (err, stdout, stderr) => {
         if (err) {
           const msg = (err as { killed?: boolean }).killed