Canvas Feature

Purpose: Infinite zoomable/pannable workspace where krates live. Starts empty.

Layout:

Full‑viewport position: fixed; inset: 0 with background #0b0e13.
Two CSS grid overlays (fine 34px rgba(125,145,175,.04), coarse 170px rgba(125,145,175,.075)).
World layer: <div> sized 12000×8000px, transformed via translate(camX, camY) scale(zoom); all krates/windows are absolutely positioned children.
Top bar (height ~56px, z-index:10).
Bottom hint bar (right:18px; bottom:18px).
Zoom pill (left:18px; bottom:18px).
Minimap (right:18px; bottom:64px; width:180px; height:120px).

Navigation:

Scroll wheel → pan.
Ctrl/⌘ + scroll → zoom.
Space + drag → pan (global capture, works even when a shell has focus).
Click empty canvas → open Spotlight.
Typing any key (when no input focused) → open Spotlight pre‑seeded with that character.

LOD:

zoom > 0.5 normal view (krates expanded, windows visible).
zoom < 0.4 collapsed view (krates become 230 px overview cards, windows hidden).
Hysteresis: collapse @0.4, expand @0.5.

Camera fly: on programmatic open, animate to center krate with zoom:0.92 using transform .52s cubic‑bezier(.22,.8,.28,1).