zoomcal-jeffemmett/backlog/tasks/task-5 - Implement-source-visibility-filtering.md

id	title	status	assignee	created_date	updated_date	labels	dependencies	priority
task-5	Implement source visibility filtering	Done		2026-01-02 14:28	2026-01-02 16:45			medium

Description

Wire up the source checkboxes in the sidebar to actually filter displayed events by calendar source

Implementation Notes

Refactored source visibility to use "hidden sources" approach:

• Changed visibleSources to hiddenSources in store (cleaner logic: empty = show all)
• Updated CalendarSidebar to check !hiddenSources.includes(source.id)
• Updated MonthView to filter events by hidden sources before display
• Event count header shows "X of Y events" when filtering is active
• State persisted via Zustand persist middleware