docs(website): update seed (year + choice-sets) and readline keys for the merge

Seed page reflects #33/#34: year-as-int columns, built-in value sets
(priority/severity/rating), advisory now status-only; output blocks
re-captured and the seed cast re-recorded. Assistive-editor documents
the #29 readline shortcuts (Ctrl-A/E/W/K/U, Esc) and #30 cross-mode
history recall; multi-line stays the only planned item.

website/casts-src/casts.mjs

@@ -82,12 +82,10 @@ export const casts = [
     name: 'seed',
     title: 'Fill a table with realistic, ready-to-query data in one command',
     width: 90,
-    // Two seeds: a people table (`name` → real names, `joined` → recent dates,
-    // which seed nails today) and a tickets table that mixes a free-text column
-    // (`subject`), an auto-detected `priority` (short once #34 lands — until
-    // then a fresh recording fills it with placeholder text), and a `status`
-    // pinned via `set status in (...)` to show the override clause. Re-record
-    // in the final sweep once #34 is in.
+    // Two seeds: a people table (`name` → real names, `joined` → recent dates)
+    // and a tickets table mixing a free-text column (`subject`), an
+    // auto-detected `priority` (a built-in low/medium/high set, #34), and a
+    // `status` pinned via `set status in (...)` to show the override clause.
     height: 28,
     typeSpeed: '45ms',
     steps: [