Build dashboard UI for agreed metrics and filters

Objective

• Build the client-care dashboard UI: multi-select brands and schedulers, saved base configs, per-user local filters, preset vs custom dates, scheduler performance tables, and umbrella category assignment UX (ties to umbrella APIs).
• Optional CSV export for scheduler/brand tables if time allows.

Background

• Depends on ATT-1029 for data contracts and aggregation behavior.
• Access control for who sees admin dashboard is TBD—track in ATT-1016 when product defines it.
• Admin shell target is admin.attik.ai (thin shell per ATT-1015); umbrella service mapping APIs/persistence live under ATT-1096.

Scope

Frontend

• Implement in the Client Care Dashboard project (assignee workspace). Consume metrics endpoints once available; mirror controller patterns from existing dashboard widgets where useful (attik-frontend/src/components/dashboard/…).

Config / product

• Date presets called out previously: current month, last month, trailing 3, previous week, custom.
• Sections: brand totals; scheduler table with team averages and active/inactive toggles; umbrella category editor assigning any service per instance to groupings.

References

• Depends on: ATT-1029, ATT-1096, ATT-1015, ATT-1016
• Internal dashboard reference patterns: attik-frontend/src/components/dashboard/Revenue/Revenue.tsx