Get unified inbox tickets

Get open conversations from every project the authenticated user can access. Only INQUIRY tickets are returned; done, snoozed, archived, spam, hidden and merged-duplicate tickets are excluded. Returns { tickets: [...] }. Query parameters: type is a filter preset, one of my (or personalinbox), unassigned, unread, mentioned, needsinput, needsyou (an AI agent's card waits on you, one of your teams or the whole project), overdue (any other value returns all accessible open conversations); filteredProjectId restricts to one project; page (1-based) and limit should be passed together.