Feat/events multiselect bulk actions

[Dobrunia]

Summary

Introduces multi-select on the project daily events list with a bulk action bar

[Copilot]

Pull request overview

Adds backend support and test coverage for multi-select bulk actions on events, including bulk visit, bulk mark toggle, and bulk assignee updates.

Changes:

• Introduces new GraphQL mutations/types for bulk visiting events, bulk toggling marks, and bulk updating assignees.
• Adds resolver/helper logic to validate/dedupe bulk IDs, merge invalid IDs into failedEventIds, and enqueue assignee notifications asynchronously.
• Implements EventsFactory bulk operations and adds Jest tests for resolvers/helpers/factory methods.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
test/resolvers/event-bulk-visit.test.ts	Adds resolver tests for bulkVisitEvents validation + failed ID merging
test/resolvers/event-bulk-update-assignee.test.ts	Adds resolver tests for EventsMutations.bulkUpdateAssignee and notification enqueueing
test/resolvers/event-bulk-toggle-marks.test.ts	Adds resolver tests for bulkToggleEventMarks semantics + validation
test/resolvers/bulk-events-helper.test.ts	Adds helper tests for fire-and-forget notification enqueueing
test/models/eventsFactory-bulk-visit.test.ts	Adds model tests for EventsFactory.bulkVisitEvent
test/models/eventsFactory-bulk-update-assignee.test.ts	Adds model tests for EventsFactory.bulkUpdateAssignee
test/models/eventsFactory-bulk-toggle.test.ts	Adds model tests for EventsFactory.bulkToggleEventMark
src/typeDefs/event.ts	Adds new GraphQL inputs/types/mutations for bulk operations
src/resolvers/helpers/bulkEvents.js	Adds bulk ID parsing/merging helpers + async notification enqueue helper
src/resolvers/event.js	Wires new bulk mutations and switches assignee notification sending to fire-and-forget
src/models/eventsFactory.js	Implements bulk visit, bulk mark toggle, bulk assignee update, and shared resolver for bulk IDs
package.json	Bumps package version

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 94.87179% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.21%. Comparing base (0f8dad9) to head (fcd6fd3).
⚠️ Report is 43 commits behind head on master.

Files with missing lines	Patch %	Lines
src/resolvers/helpers/bulkEventUtils.ts	83.33%	3 Missing ⚠️
src/resolvers/event.js	97.43%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #640       +/-   ##
===========================================
- Coverage   58.30%   43.21%   -15.09%     
===========================================
  Files          19       53       +34     
  Lines         518     2455     +1937     
  Branches       95      517      +422     
===========================================
+ Hits          302     1061      +759     
- Misses        216     1318     +1102     
- Partials        0       76       +76     

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