feat(core): Add Cohere provider support for chat hub (no-changelog)

[Cadiac]

Summary

This PR adds Cohere provider for chat hub.

Related Linear tickets, Github issues, and Community forum posts

https://linear.app/n8n/issue/CHA-63/feature-add-more-models

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)

[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	11.34MB (+46.7KB +0.4%)	-
✅	**/*.css	227.49KB (+6.72KB +3.04%)	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[codecov]

Codecov Report

❌ Patch coverage is 14.28571% with 6 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...kages/cli/src/modules/chat-hub/chat-hub.service.ts	0.00%	5 Missing ⚠️
.../src/modules/chat-hub/chat-hub-workflow.service.ts	0.00%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[cubic-dev-ai]

No issues found across 6 files

[currents-bot]

✅

E2E Tests: n8n tests passed after 11m 32.5s

🟢 583 · 🔴 0 · ⚪️ 12 · 🟣 5

View Run Details

Run Details

• Project: n8n

• Groups: 2

• Framework: Playwright

• Run Status: Passed

• Commit: 9068905

• Spec files: 95

• Overall tests: 595

• Duration: 11m 32.5s

• Parallelization: 8

Groups

GroupId	Results	Spec Files Progress
ui	🟢 528 · 🔴 0 · ⚪️ 12 · 🟣 5	88 / 88
ui:isolated	🟢 55 · 🔴 0 · ⚪️ 0	7 / 7

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[n8n-assistant]

Got released with [email protected]