chore(editor): Remove all calls to fetch all users and replace with targeted filtering

[guillaumejacquart]

Summary

Addresses performance degradation when working with large user lists by removing unlimited database queries (take: -1) and implementing proper filtering.

Changes

Backend:

Add filter capabilities (by ids, or by pending state) on the users controller to enable better filter targeting on the front.

Editor:
Added remote, remoteMethod, and loading props for paginated user loading. Maintains backwards compatibility with local filtering mode.
Removed useless calls to users.
Transformed global fetch of all users to targeted fetch with filtering

Related Linear tickets, Github issues, and Community forum posts

https://linear.app/n8n/issue/IAM-158/community-issue-performance-degradation-while-big-users-count

Review / Merge checklist

• PR title and summary are descriptive. (conventions)
• Docs updated or follow-up ticket created.
• Tests included.
• PR Labeled with release/backport (if the PR is an urgent fix that needs to be backported)

[codecov]

Codecov Report

❌ Patch coverage is 54.11765% with 39 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...s/collaboration/projects/views/ProjectSettings.vue	55.88%	12 Missing and 3 partials ⚠️
...itor-ui/src/features/settings/users/users.store.ts	0.00%	11 Missing ⚠️
...res/settings/users/components/InviteUsersModal.vue	0.00%	7 Missing ⚠️
...ckages/@n8n/db/src/repositories/user.repository.ts	0.00%	6 Missing ⚠️

📢 Thoughts on this report? Let us know!

[codecov]

Bundle Report

Changes will increase total bundle size by 40.94MB (100.0%) ⬆️⚠️, exceeding the configured threshold of 5%.

Bundle name	Size	Change
editor-ui-esm	40.94MB	40.94MB (100%) ⬆️⚠️

[codecov]

Bundle Report

Changes will increase total bundle size by 40.98MB (100.0%) ⬆️⚠️, exceeding the configured threshold of 5%.

Bundle name	Size	Change
editor-ui-esm	40.98MB	40.98MB (100%) ⬆️⚠️

[cubic-dev-ai]

1 issue found across 17 files

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="packages/frontend/editor-ui/src/features/workflows/workflowHistory/views/WorkflowHistory.vue">

<violation number="1" location="packages/frontend/editor-ui/src/features/workflows/workflowHistory/views/WorkflowHistory.vue:117">
P1: Rule violated: **Prefer Typeguards over Type casting**

Replace the type assertion with a type guard. Rule 1 forbids `as` for type narrowing; use a predicate to narrow to string instead.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}