[Test] Add Intake Desk route with triage cards

[iamasx]

Summary

Add an intake-desk route that presents incoming requests, triage cards, and a compact assignment summary panel.

Scope

• Add a dedicated intake-desk route under the app router.
• Create mock request, triage, and assignment-summary data.
• Build request cards, triage summaries, and a compact side panel.

Acceptance Criteria

• The route renders incoming request content clearly.
• Triage and assignment information is visible.
• The layout remains readable on mobile and desktop.
• Tests cover the main render states.

[iamasx]

Implementation plan:

• Add the intake-desk route shell and supporting mock data.
• Build request-card, triage-summary, and assignment-panel components.
• Compose the route page with a clear intake workflow and responsive layout.
• Add styling refinements and representative route tests.
• Run the standard local checks before finishing.