fix(ui): use v1 API for global search

[vishu-bh]

Pull Request

🔗 Related Issue

N/A

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📝 Summary

Updates React global search to use the stable, versioned GET /v1/search API instead of the admin-only GET /admin/search endpoint.

Renames the client helper from searchAdminEntities to searchEntities and updates unit and Playwright coverage. Response handling remains unchanged because /v1/search provides the same grouped search contract while enforcing authentication, per-entity RBAC, and token scoping without requiring admin.dashboard.

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📏 Reviewability

• This PR has one clear purpose
• The linked issue is not labeled triage
• Unrelated bugs or improvements are tracked in separate issues/PRs
• Tests are included with the code they validate

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🏷️ Type of Change

• Bug fix
• Feature / Enhancement
• Documentation
• Refactor
• Chore (deps, CI, tooling)
• Other (describe below)

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🧪 Verification

Check	Command	Status
Focused unit tests	npm run test:run -- src/api/search.test.ts src/components/layout/HeaderQuickNav.test.tsx	Passed (25 tests)
Targeted lint	npx eslint src/api/search.ts src/api/search.test.ts src/components/layout/HeaderQuickNav.tsx src/components/layout/HeaderQuickNav.test.tsx e2e/global-search.spec.ts	Passed
Formatting	npx prettier --check src/api/search.ts src/api/search.test.ts src/components/layout/HeaderQuickNav.tsx src/components/layout/HeaderQuickNav.test.tsx e2e/global-search.spec.ts	Passed
TypeScript	npx tsc -b --pretty false	Passed

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✅ Checklist

• Code formatted
• Tests added/updated for changes
• Documentation updated (not applicable)
• No secrets or credentials committed

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📓 Notes (optional)

Targets epic/ui-rewrite, where the React UI implementation lives.

[gcgoncalves]

👏