Initial commit: AeroFetch — yt-dlp/YouTube downloader for Windows

Electron + React (Fluent UI) desktop frontend for yt-dlp:
- Download queue with live progress, concurrency cap, cancel/retry
- Format/quality picker via yt-dlp probe; audio extraction to MP3
- Settings + history persistence (electron-store / JSON)
- Clipboard link auto-detect; persisted light/dark theme
- NSIS + portable packaging (binaries bundled at build time, not in git)

UI: "Studio" sidebar layout with a toffee-brown theme (light + neutral dark).
Dropdowns use a native <select> and tooltips a CSS-only Hint, to avoid a
dev-machine GPU overlay flicker/blank issue.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/main/ytdlp.ts

@@ -0,0 +1,29 @@
+import { execFile } from 'child_process'
+import { existsSync } from 'fs'
+import { getYtdlpPath } from './binaries'
+import type { YtdlpVersionResult } from '@shared/ipc'
+
+/**
+ * Step-1 spike: spawn the bundled yt-dlp and read back `--version`.
+ * Proves the main-process → bundled-binary → IPC path end to end.
+ */
+export function getYtdlpVersion(): Promise<YtdlpVersionResult> {
+  const ytdlpPath = getYtdlpPath()
+
+  if (!existsSync(ytdlpPath)) {
+    return Promise.resolve({
+      ok: false,
+      error: `yt-dlp.exe not found at ${ytdlpPath}\nDownload it into resources/bin/ (see the README there).`
+    })
+  }
+
+  return new Promise((resolve) => {
+    execFile(ytdlpPath, ['--version'], { windowsHide: true }, (err, stdout, stderr) => {
+      if (err) {
+        resolve({ ok: false, error: (stderr || err.message).trim() })
+        return
+      }
+      resolve({ ok: true, version: stdout.trim() })
+    })
+  })
+}