Closes Task-invite-recipient-autocomplete. The invite dialog's plain
email input is replaced with a debounced combobox that surfaces the
four real cases — existing member, pending invite, known user from a
sibling workspace, brand-new email — before the inviter hits send.
Subagent ran in parallel while the main thread shipped Task 2's UI;
file-level non-overlap held (subagent stayed in
apps/web/components/teams/invite-recipient-combobox.tsx and the
shared types; main thread stayed in invite-dialog.tsx and the
teams page). This commit folds the subagent's deliverable in plus
the two-line wire-up that swaps the input for the combobox.
Files (5 by subagent + 1 wire-up by main thread):
@tasks/shared:
* packages/shared/src/types/invite-suggestions.ts — InviteSuggestion
union + pure mergeInviteSuggestions ranker. Lives in shared so
client + server consume one type definition.
* packages/shared/src/types/invite-suggestions.test.ts — 9 vitest
cases covering kind ordering, dedupe (known_user vs member by
userId, vs pending_invite by lowercased email), new_email
suppression when other kinds cover the typed address, the 10-
result limit, and email normalization.
* packages/shared/src/types/index.ts — re-export.
apps/web:
* apps/web/server/routers/invites.ts — new `suggestRecipient`
procedure on workspaceProcedure (owner/admin only). Implements
the four kinds with the tenancy fence wired as a two-step query:
first SELECT DISTINCT workspace_id FROM workspace_members WHERE
user_id = inviter (the inviter's workspace pool), then
inArray(workspaceMembers.workspaceId, pool) + ne(users.id,
inviter) on the candidate join. Read the procedure JSDoc for the
full set of invariants. All user-typed patterns escape through
escapeIlike with the ESCAPE '\\' clause (mirrors search.ts).
No existing exports modified.
* apps/web/components/teams/invite-recipient-combobox.tsx —
standalone controlled combobox. 200ms debounce, min-2-char gate,
distinct row styling per kind, ArrowUp/Down/Enter/Esc keyboard
nav, outside-click close.
* apps/web/components/teams/invite-dialog.tsx (wire-up) — Input
swapped for InviteRecipientCombobox. Added an
onFocusExistingMember prop so a future teams-page integration
can scroll/focus the matching row when a `member` suggestion is
picked; for now the dialog just closes cleanly on member-pick.
Gates: 0 lint errors / 15 warnings (14 baseline + 1 incidental
from earlier teams-page work, none from this task's files); 6/6
type-check; 23/23 tests (14 baseline + 9 new).
Acceptance criteria all met except the live-DB tenancy-fence
integration test (skipped because apps/web has no vitest harness;
unblocked by Task-bootstrap-vitest-for-apps-web P2).
Co-authored-by: Cursor <cursoragent@cursor.com>
