Adversarial review found the "picks at random each time" hint in the
Shortcuts editor was false: boot.js never sent a seed to /api/prompt/expand,
so core/shortcuts.py's own no-seed fallback (hash of the literal text) made
the pick a fixed function of the prompt, identical across every Generate on
unedited text. Fixed by drawing a fresh random seed per queue -- confirmed
with a Playwright test asserting two consecutive Generate clicks send
different seeds.