feat: pharmacy hours status and open now filter

- Add is_open_now and is_always_open helpers in backend
- Add backend endpoint enrichment with is_open and is_24h fields
- Add client-side getOpenStatus with 24h, opens-at, opens-tomorrow support
- Add open-now filter toggle in PublicView and SearchView
- Add pharmacy no-hours fallback display
- Add sticky pharmacy controls on scroll
- Add admin hours editor with 24h toggle
- Add translations (es/ca) for all hour-related strings
- Add backend tests for hours logic and pharmacy endpoint
- Remove unused backup test files

apps/frontend/src/components/PharmacyMap.jsx

@@ -31,7 +31,7 @@ function PharmacyMap({ pharmacies }) {
         {located.map(pharmacy => (
           <Marker key={pharmacy.id} position={[pharmacy.latitude, pharmacy.longitude]}>
             <Popup>
-              <strong>{pharmacy.name}</strong><br />
+              <strong>{pharmacy.name} {pharmacy.is_24h && <span className="map-badge-24h">24h</span>}</strong><br />
               {pharmacy.address}
               {pharmacy.phone && <><br />{pharmacy.phone}</>}
               <br />