feat(core): Use personal projects for chat hub executions (no-changelog)

[Cadiac]

Summary

Use user's personal project as the project context for chat hub executions. Only list credentials usable in the personal project, except for owners / instance admins list all credentials as they can be used in those user's personal projects..

n8n workflow agents are still executed in their own project context.

Related Linear tickets, Github issues, and Community forum posts

https://linear.app/n8n/issue/CHA-61

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)

[cubic-dev-ai]

1 issue found across 3 files

Prompt for AI agents (all 1 issues)

Understand the root cause of the following 1 issues and fix them.


<file name="packages/cli/src/modules/chat-hub/chat-hub-credentials.service.ts">

<violation number="1" location="packages/cli/src/modules/chat-hub/chat-hub-credentials.service.ts:62">
Rule violated: **Tests**

No tests cover the newly added `ensureWorkflowCredentials` flow that now enforces project-scoped credential access, violating the Community PR Guidelines requirement to add tests for new core functionality.</violation>
</file>

_{Reply to cubic to teach it or ask questions. Re-run a review with @cubic-dev-ai review this PR}

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 26 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...tures/ai/chatHub/composables/useChatCredentials.ts	0.00%	23 Missing ⚠️
...c/modules/chat-hub/chat-hub-credentials.service.ts	92.30%	0 Missing and 2 partials ⚠️
...kages/cli/src/modules/chat-hub/chat-hub.service.ts	50.00%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[bundlemon]

BundleMon

Unchanged files (2)

Status	Path	Size	Limits
✅	WASM Dependencies tree-sitter-bash.wasm	181.26KB	-
✅	WASM Dependencies tree-sitter.wasm	74.47KB	-

No change in files bundle size

Groups updated (2)

Status	Path	Size	Limits
✅	**/*.js	11.38MB (+94.75KB +0.82%)	-
✅	**/*.css	231.53KB (+10.76KB +4.87%)	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[currents-bot]

✅

E2E Tests: n8n tests passed after 12m 9.6s

🟢 588 · 🔴 0 · ⚪️ 12 · 🟣 2

View Run Details

Run Details

• Project: n8n

• Groups: 2

• Framework: Playwright

• Run Status: Passed

• Commit: 2650154

• Spec files: 96

• Overall tests: 600

• Duration: 12m 9.6s

• Parallelization: 9

Groups

GroupId	Results	Spec Files Progress
ui	🟢 539 · 🔴 0 · ⚪️ 12	90 / 90
ui:isolated	🟢 49 · 🔴 0 · ⚪️ 0 · 🟣 2	6 / 6

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