deps(npm): bump @vitest/ui from 2.1.9 to 4.1.2 in /frontend/taskdeck-web #709

Job	Run time
Dependency Review	9s
OpenAPI Guardrail / OpenAPI Guardrail	41s
Workflow Lint	31s
Backend Solution Regression	0s
Dependency Security Signals	0s
E2E Smoke	0s
Load and Concurrency Harness	0s
Demo Director Smoke	0s
	1m 21s

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