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>

resources/bin/README.md

@@ -0,0 +1,30 @@
+# Bundled binaries
+
+AeroFetch spawns these from the **main process** and bundles them via
+electron-builder `extraResources` (they ship outside the asar archive). They are
+**not** committed to git (see `.gitignore`).
+
+Drop the two Windows executables here before running `npm run dev` or building:
+
+```
+resources/bin/
+├── yt-dlp.exe
+└── ffmpeg.exe
+```
+
+## yt-dlp.exe
+
+- Download: https://github.com/yt-dlp/yt-dlp/releases/latest
+- Grab `yt-dlp.exe`.
+- Unlicense / public domain.
+
+## ffmpeg.exe
+
+- Use an **LGPL** build to keep licensing simple, e.g.
+  https://github.com/BtbN/FFmpeg-Builds/releases (pick a `*-lgpl-shared` or
+  `*-lgpl` win64 build) or https://www.gyan.dev/ffmpeg/builds/.
+- Copy `ffmpeg.exe` here. Ship the LGPL license text alongside the installer
+  before release.
+
+> Branding stays generic: AeroFetch is a "yt-dlp frontend." Keep upstream
+> license texts with any distributed build.