✨ feat: Add tag-based filtering & refactor filter counts logic

Overview:
• Introduced a new “Model Tag” filter across pricing screens
• Refactored `usePricingFilterCounts` to eliminate duplicated logic
• Improved tag handling to be case-insensitive and deduplicated
• Extended utilities to reset & persist the new filter

Details:
1. Added `filterTag` state to `useModelPricingData` and integrated it into all filtering paths.
2. Created reusable `PricingTags` component using `SelectableButtonGroup`.
3. Incorporated tag filter into `PricingSidebar` and mobile `PricingFilterModal`, including reset support.
4. Enhanced `resetPricingFilters` (helpers/utils) to restore tag filter defaults.
5. Refactored `usePricingFilterCounts.js`:
   • Centralized predicate `matchesFilters` to remove redundancy
   • Normalized tag parsing via `normalizeTags` helper
   • Memoized model subsets with concise filter calls
6. Updated lints – zero errors after refactor.

Result:
Users can now filter models by custom tags with consistent UX, and internal logic is cleaner, faster, and easier to extend.

web/src/components/table/model-pricing/layout/header/PricingTopSection.jsx

@@ -50,6 +50,7 @@ const PricingTopSection = ({
           onCompositionEnd={handleCompositionEnd}
           onChange={handleChange}
           showClear
+          className="!bg-transparent"
         />
       </div>