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.
New Reference page "Generating sample data" (captured output + a
two-table seed cast showing generation, FK sampling context, and a
`set` override); cross-links from inserting-and-editing-data and
columns; seed added to the rdbms highlight grammar;
querying/sql-queries renumbered. Cast stance in STYLE.md revised to
"justify the absence". Refs #33, #34.