Add dedicated service metrics page

[arjunkomath]

Summary

• add a Metrics tab before Logs for every service
• show requests, latency, traffic, and resource charts as four full-width rows
• add a URL-backed time range selector matching Logs (1h, 6h, 24h, 7d)
• share one metrics request across all charts while preserving the existing 24h overview
• use range-aware time labels and retain existing chart data during range changes

Validation

• npx tsc --noEmit
• npx biome check --write components/service/details/service-details-overview.tsx components/service/details/service-metrics-page.tsx components/service/service-layout-client.tsx 'app/(dashboard)/dashboard/projects/[slug]/[env]/services/[serviceId]/metrics/page.tsx'
• npm test -- --run tests/victoria-metrics-service-metrics.test.ts
• git diff --check

[github-actions]

React Doctor found no new issues. 🎉

_{Reviewed by React Doctor for commit 66f9779.}