feat: add README, app icon, and installer branding

- Add README.md with feature overview and all 3 screenshots
- Generate multi-size app icon (SVG -> PNG/ICO) via sharp
- Configure Electron Forge with icon for packager and Squirrel installer
- Auto-generate icons on `npm run make`

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: dbfx

README.md

@@ -0,0 +1,75 @@
+# Modern MTR
+
+A beautiful, modern network diagnostic tool built with Electron, React, and TypeScript. Think [WinMTR](https://github.com/White-Tiger/WinMTR) but with a sleek dark UI, real-time charts, and global connectivity monitoring.
+
+![Traceroute View](images/mtr.png)
+
+## Features
+
+- **Real-time Traceroute** — Discover network hops and continuously monitor latency, jitter, and packet loss
+- **Live Charts** — Latency, jitter, and packet loss visualized with interactive Recharts graphs and per-hop sparklines
+- **Global Target Map** — Click-to-trace from 17 AWS regions worldwide with an interactive world map
+- **Packet Loss Monitor** — Dashboard tracking real-time loss across 6 global endpoints
+- **GeoIP Lookups** — Automatic geolocation and reverse DNS for every hop
+- **Dark Theme** — Gorgeous dark UI with smooth Framer Motion animations
+
+## Screenshots
+
+### Global Target Selector
+Click any AWS region on the interactive map to start a trace.
+
+![Global Targets](images/global-selector.png)
+
+### Packet Loss Monitor
+Monitor real-time packet loss to endpoints across the globe.
+
+![Packet Loss Monitor](images/packet-loss.png)
+
+## Installation
+
+Download the latest installer from [Releases](https://github.com/dbfx/modern-win-mtr/releases).
+
+Or build from source:
+
+```bash
+git clone https://github.com/dbfx/modern-win-mtr.git
+cd modern-win-mtr
+npm install
+npm start
+```
+
+## Building
+
+```bash
+# Package the app
+npm run package
+
+# Build installers (.exe + .zip)
+npm run make
+```
+
+## Release
+
+This project uses [Conventional Commits](https://www.conventionalcommits.org/) and [standard-version](https://github.com/conventional-changelog/standard-version) for automated changelog generation.
+
+```bash
+# Bump version, update CHANGELOG, tag release
+npm run release
+
+# Push with tags — GitHub Actions builds and publishes the release
+git push --follow-tags origin main
+```
+
+## Tech Stack
+
+- **Electron** 40 — Desktop runtime
+- **React** 18 + **TypeScript** — UI framework
+- **Vite** — Build tooling via Electron Forge
+- **Tailwind CSS** — Styling
+- **Recharts** — Charts and data visualization
+- **React Simple Maps** — Interactive world map
+- **Framer Motion** — Animations
+
+## License
+
+[MIT](LICENSE)