Build Pool Filtering options (by category, status)

[Akshola00]

Description

Create filtering UI for pool browsing allowing users to filter pools by category, status (active, completed, expired), and other criteria.

Acceptance Criteria

• Filter UI displays on Browse page
• Filter by category/type
• Filter by status (active, completed)
• Multiple filters can be combined
• Applied filters displayed
• Clear filters option
• Mobile responsive filters
• Build succeeds

Technical Notes

• Show filter count or badge
• Remember filter preferences
• Filter and sort work together