Market Ticker — Pulse M icon

Concept: a custom M monogram whose center forms a market pulse valley, paired with a small live-data indicator. It uses the Market Ticker wordmark palette without reusing the wordmark artwork.

macOS:
- market_ticker_app_icon.svg
- market_ticker_app_icon_1024.png / 2048.png
- MarketTicker.icns
- MarketTicker.appiconset/

Web/favicon:
- favicon.svg
- favicon.ico
- favicon PNG sizes
- apple-touch-icon.png
- Android/PWA icons and site.webmanifest
