refactor(www): adopt RAC 1.20 TokenField and context menu trigger

[mehdibha]

React Aria Components 1.20.0 (released today) ships the two features we were carrying workarounds for: the official TokenField and native context menu support in MenuTrigger. This PR updates the packages and deletes both workarounds.

Package update

• react-aria-components ^1.19.0 → ^1.20.0, react-aria → ^3.51.0, react-stately → ^3.49.0.
• @internationalized/date → ^3.12.3 — required to dedupe: keeping 3.12.2 alongside react-aria's 3.12.3 produced two class identities and ~60 Time is not assignable to ZonedDateTime type errors.
• All five packages released 2026-07-31, so they're pinned in minimumReleaseAgeExclude (replacing the previous versions' entries).

TokenField: vendored copy deleted

www/src/registry/lib/react-aria-token-field/ (vendored from adobe/react-spectrum#10318) is gone; ui/token-field and ui/mention now import from react-aria-components/TokenField. The shipped API matches the PR except for renames, applied across base files, types, demos, docs, and the landing ai-prompt showcase:

• TokenSegmentList → TokenFieldValue
• standalone Direction enum → TokenFieldValue.Direction
• positionToDOMRange → tokenFieldPositionToDOMRange

The token-field docs no longer describe the primitive as vendored and link to the official TokenField page. Demo subclasses renamed to match (TagFieldValue, HashtagFieldValue).

ContextMenu: registry item deleted, folded into Menu

MenuTriggerProps now includes trigger: 'press' | 'longPress' | 'contextMenu', and our Menu wrapper already extends it — so the entire ui/context-menu item (including the ~340-line use-context-menu-trigger hook) is replaced by the native trigger. The upstream implementation opens the menu at the pointer, and handles touch long-press, macOS Ctrl+Enter, and closing on outside right-click.

• The standalone Context Menu docs page is removed; the Menu docs gain a Triggers section covering longPress and contextMenu, with a live demo (menu/demos/context-menu.tsx). Non-button trigger areas wrap in React Aria's Pressable with role/tabIndex.
• The two www usages (landing logo brand-assets menu, docs composition animation) were rewritten on the new pattern.

Verification

• pnpm check, pnpm typecheck green; build:registry + build:references regenerated and committed.
• Verified in the browser: token fields render tokens and accept typing; mention suggestions open, filter, and insert tokens; the context-menu demo opens exactly at the pointer (popover corner lands on the click point); the landing logo right-click menu works; console free of Pressable/a11y warnings.
• One pre-existing quirk (not a regression): selecting a mention suggestion via ArrowDown/Enter doesn't move virtual focus into the menu under the browser tool's key injection — production behaves identically. Worth a manual keyboard check.

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Project	Deployment	Actions	Updated (UTC)
dotui	Ready	Preview	Jul 31, 2026 10:00pm