chore(security): replace deprecated useragent with ua-parser-js (GHSA-mgfv-m47x-4wqp) #937
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What
Replace the unmaintained useragent dependency(with security concerns) with ua-parser-js.
Github Security Advisory Link
Why
useragent has longstanding ReDoS concerns and is effectively unmaintained. This PR removes the risk surface without changing Kutt’s analytics outputs.
How
Behaviour change?
None intended. Verified locally with common UA strings; DB rows match previous normalisation.
Follow-ups
Optional: add isbot behind SKIP_BOTS=false (separate PR) to avoid counting obvious bots.