✨(backend) use langfuse to monitor AI actions

[lunika]

Purpose

We want to monitor AI actions. For this we choose to use langfuse. As this usage is optional, we load langfuse sdk only if settings are configured. Also, the openai client from langfuse is a dropin replacement of openai client, so we only have to change how openai is imported.

Proposal

• ✨(backend) use langfuse to monitor AI actions

Fixes #1672

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	eslint-config-next@​15.5.9
	convert-stream@​1.0.2
	jest@​30.2.0
	workbox-webpack-plugin@​7.1.0
	cors@​2.8.5
	crisp-sdk-web@​1.0.26
	vitest@​4.0.15
	clsx@​2.1.1
	express-ws@​5.0.2
	i18next-parser@​9.3.0
	cross-env@​10.1.0
	use-debounce@​10.0.6
	emoji-mart@​5.6.0
	ts-node@​10.9.2
	vitest-mock-extended@​3.1.0
	next@​15.5.9
	stylelint-prettier@​5.0.3
	lodash@​4.17.21
	eslint-plugin-react@​7.37.5
	nodemon@​3.1.11
	tsc-alias@​1.8.16
	eslint-plugin-import@​2.32.0
	eslint-plugin-jsx-a11y@​6.10.2
	docx@​9.5.0
	react@​19.2.3
	uuid@​13.0.0
	copy-webpack-plugin@​13.0.1
	node-fetch@​2.7.0
	i18next-browser-languagedetector@​8.2.0
	y-protocols@​1.0.6
	eslint-plugin-playwright@​2.4.0
	react-intersection-observer@​10.0.0
	fetch-mock@​9.11.0
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[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		Obfuscated code: npm entities is 91.0% likely obfuscated Confidence: 0.91 Location: Package overview From: ? → npm/@blocknote/server-util@0.45.0 → npm/i18next-parser@9.3.0 → npm/entities@6.0.1 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/entities@6.0.1. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.
Warn		Obfuscated code: npm vite is 91.0% likely obfuscated Confidence: 0.91 Location: Package overview From: ? → npm/vitest@4.0.15 → npm/vite@7.1.12 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/vite@7.1.12. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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[AntoLC]

Easy ^^