refactor: rename "EventType" symbols to "Calendar"

[naveensingh]

Zero behavioral change.

[Copilot]

Pull request overview

This PR performs a comprehensive refactoring to rename "EventType" terminology to "Calendar" throughout the codebase. The changes align the internal naming conventions with the actual domain concept being represented (calendars rather than event types).

• Renamed data model class EventType to CalendarEntity
• Renamed database DAO from EventTypesDao to CalendarsDao
• Updated all UI components, dialogs, adapters, and activities to use "Calendar" naming
• Replaced field names like eventType with calendarId in the Event model

Reviewed changes

Copilot reviewed 57 out of 58 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
app/src/main/res/menu/menu_event_types.xml	Updated menu item ID from add_event_type to add_calendar
app/src/main/res/layout/*.xml	Renamed all layout resource IDs from event_type to calendar patterns
app/src/main/kotlin/org/fossify/calendar/models/EventType.kt	Renamed class to CalendarEntity and method isSyncedEventType() to isSyncedCalendar()
app/src/main/kotlin/org/fossify/calendar/models/Event.kt	Renamed field eventType to calendarId
app/src/main/kotlin/org/fossify/calendar/interfaces/	Renamed EventTypesDao to CalendarsDao and DeleteEventTypesListener to DeleteCalendarsListener
app/src/main/kotlin/org/fossify/calendar/helpers/*.kt	Updated all helper classes to use calendar terminology instead of event type
app/src/main/kotlin/org/fossify/calendar/dialogs/*.kt	Renamed dialogs from SelectEventTypeDialog to SelectCalendarDialog, etc.
app/src/main/kotlin/org/fossify/calendar/adapters/*.kt	Renamed adapters from FilterEventTypeAdapter to FilterCalendarAdapter, etc.
app/src/main/kotlin/org/fossify/calendar/activities/*.kt	Renamed ManageEventTypesActivity to ManageCalendarsActivity and EventTypePickerActivity to CalendarPickerActivity
app/src/main/kotlin/org/fossify/calendar/databases/EventsDatabase.kt	Updated database entity references from EventType::class to CalendarEntity::class
app/src/main/AndroidManifest.xml	Updated activity class names to reflect calendar naming

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 59 out of 60 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.