Refactor calendar context functions to improve documentation clarity and parameter usage

api/CalendarContextInviteType.lua

@@ -1,15 +1,13 @@
 ---@diagnostic disable: missing-return, lowercase-global
 ---@meta
 
----@param monthOffset CalendarContextSelectEvent 
----@param -1  
----@param 0  
----@param 1  
----@param nil CalendarContextSelectEvent 
----@param day number 
----@param index number 
----@return 2 inviteType 
----@return  1 
----@return  2 
+---@alias inviteType
+---| 1 Characters can only be explicitly invited to the event (or event is a non-invite/non-signup event)
+---| 2 Event is visible to the player's entire guild; guild members can sign up and other characters can be explicitly invited
+
+---@param monthOffset monthOffset
+---@param day number
+---@param index number
+---@return inviteType
 ---Returns the invite type for an event
-function CalendarContextInviteType(monthOffset, -1, 0, 1, nil, day, index) end
+function CalendarContextInviteType(monthOffset, day, index) end