Add a searchable category dropdown filter on the new resource page to help users filter services by category.
Features:
- Category dropdown positioned next to search input
- Auto-focus on search field when dropdown opens
- Case-insensitive category filtering
- Proper acronym formatting (AI, API, CI, etc. displayed in uppercase)
- Loading/disabled state while categories are being fetched
- Category search/filter within dropdown
- Alphabetical sorting (case-insensitive)
Backend changes:
- Extract unique categories from service templates
- Handle comma-separated categories
- Format common acronyms to uppercase
- Case-insensitive natural sorting
Frontend changes:
- Searchable dropdown component with Alpine.js
- Category filter integration with existing search
- Disabled state placeholder during loading
- Auto-focus behavior for better UX
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Co-Authored-By: Claude <noreply@anthropic.com>
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