feat(ui): enrich DB row context menu — open in tab/window + copy link (CM-3)

[eliotlim]

What

Enriches the database row context menu — right-clicking a card (board/gallery) or a
table cell — with proper open targets and a copy-link action, so a database row behaves
like the page it is:

• Open in new tab and Open in new window join the existing Open (split pane).
• Copy link (reuses useCopyPageLink, which guards the desktop dead-link case),
  producing a ?page= link that opens the row-as-page.
• useDatabase gains openRowIn(rowId, 'tab' | 'window'), seeding the page-title hint
  before delegating so a freshly opened surface shows the row's name at once; openRow
  remains the split-pane shorthand.

Applied to both the card-layout RowContextMenu (databaseLayouts.tsx) and the table's
CellContextMenu (DatabaseView.tsx).

Why

A row is a page — but the row menus only offered a bare "Open" plus insert/duplicate/
delete, with no way to open in a new tab/window or grab a shareable link the way the page
menus (CM-2) already do. This closes that parity gap.

Design review (Devon — CLEAR WITH NITS, applied)

The first cut also added an explicit "Open in split view" item. But the bare Open
already routes to the split pane (openRow = the 'split' shorthand), so the two were
functionally identical and stacked adjacent — redundant, and they disagreed on ordering
(Split→Tab→Window here vs Tab→Window→Split elsewhere). Per review, the redundant
"Open in split view" item was dropped from both menus: the default Open keeps
the split behaviour, and only Open in new tab + Open in new window are added as
explicit targets. This also lightens the already-crowded table-cell menu.

Resulting open group: Open · — · Open in new tab · Open in new window · — · Copy link · Insert below · Duplicate · — · Delete.

Before / After

Before = base main (pre-CM-3, minimal menu). After = this branch (open targets + copy
link, no redundant split item).

Surface	Before	After
Card (board/gallery) right-click	Open · Insert below · Duplicate · Delete	Open · Open in new tab · Open in new window · Copy link · Insert below · Duplicate · Delete — one Open, no duplicate split
Table cell right-click (Status column, fuller property-scoped menu)	Filter/Sort/Group-by header + Open · Insert below · Duplicate · Delete	same header + Open · Open in new tab · Open in new window · Copy link · … — still manageable, no split dupe

Notes / follow-ups

• Deferred (not this PR): collapsing the open targets into an "Open in ▸" submenu
  for the very dense table-cell case (esp. a date column with an active view). Devon
  flagged this as a separate follow-up, not a blocker for this change.
• Pre-existing i18n gap: the row/cell menu strings are hardcoded, matching the
  existing sibling menu items (not a regression introduced here).

---

Verify: build:libs + ui typecheck + ui lint + ui vitest all green (full UI suite
1068/1068). Gate: design (Devon) — CLEAR WITH NITS, applied. Merge owner-gated.

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Project	Deployment	Actions	Updated (UTC)
app.book.pub	Ready	Preview, Comment	Jul 14, 2026 5:19am