Show live order progress, delays, and kitchen cancellations

- Order cards derive their label from item progress (Not Started,
  Preparing, Partly Ready, Ready, Picked Up, Cancelled) instead of the
  order's own status; final states are coloured
- Order page: animated status banner per item (ready/picked up check,
  cancelled cross, running-late clock), steps collapse once an item is
  settled with a Show/Hide steps toggle, done steps are faded instead
  of struck through, and the per-item status badge is gone
- New Delay concept: machines can report extra time on a claimed step
  (preparation_step_instances.delay_seconds), which counts toward the ETA
- The kitchen can cancel an item at any point before it's ready, with a
  refund (order_items.cancelled_by records who cancelled)
- Dev kitchen simulation now runs server-side across every order, so a
  step nobody is watching no longer blocks the queue; each settled step
  may randomly be delayed or cancelled
- Humanize snake_case statuses in the UI

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

drizzle/meta/_journal.json

@@ -50,6 +50,13 @@
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       "tag": "0006_worried_shooting_star",
       "breakpoints": true
+    },
+    {
+      "idx": 7,
+      "version": "7",
+      "when": 1790804884144,
+      "tag": "0007_dazzling_norman_osborn",
+      "breakpoints": true
     }
   ]
 }