devlog #2 — window manager arc

the os grew a real window system . everything is managed from one
createWindow(app) function, so adding a new app is just adding an object
with a name, an icon and a render function.

what’s new:

• 3 apps now: about, notes, terminal
• close / minimize / maximize on every window (green button remembers
  your old size + position and puts it back)
• windows resize from a corner grip, focus raises them above the others
• a dock with the mac hover-magnify effect and little dots under
  running apps — minimized windows can be brought back from there
• notes autosave to localStorage as you type (“saving…” → “saved ✓”)
• terminal got a tiny shell: help, neofetch, echo, ls, clear…

the dock magnify is just a css transform on hover: