chore(deps): bump zod from 3.25.76 to 4.3.6 in /ui #12

Job	Run time
OSV-Scanner (SCA)	7s
jscpd (duplication < 3% on production code)	21s
Semgrep (SAST)	26s
SBOM (SPDX + CycloneDX)	9s
Gitleaks (secret scan)	8s
Trivy (filesystem scan)	18s
	1m 29s

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