v2.0.1

A polish release: the A–Z jump rail now always fits the window, and notifications match the redesign.

⚡ Improvements

• Notifications have the redesign's look: a flat card with a thin border, a coloured bar and icon for each type (success, error, warning, info), a slim progress line and a small close button.
• Notifications now appear at the bottom right instead of the top right, newest on top, with at most 4 on screen. On phones they span the full width at the bottom of the screen.

🐛 Fixes

• Fixed the A–Z jump rail on Vehicles and Sets running past the bottom of the window. It's more compact now, and on shorter windows the letters shrink so the whole rail stays visible, both at the top of the page and while scrolling.

🏗️ Infrastructure

• Frontend tests no longer send requests to a dev API running locally. Any request a test hasn't mocked fails as if the server were unreachable, so results are the same whether or not a dev server is running.