fix: backend default sort by date desc, frontend enable tier filters

backend/routers/shows.py

@@ -84,10 +84,14 @@ def read_shows(
         
     if status:
         from datetime import datetime
+        today = datetime.now()
         if status == "past":
-            query = query.where(Show.date <= datetime.now())
+            query = query.where(Show.date <= today)
         elif status == "upcoming":
-            query = query.where(Show.date > datetime.now())
+            query = query.where(Show.date > today)
+        
+    # Default sort by date descending so we get recent shows first
+    query = query.order_by(Show.date.desc())
     
     shows = session.exec(query.offset(offset).limit(limit)).all()
     return shows

frontend/app/shows/page.tsx

@@ -87,10 +87,9 @@ function ShowsContent() {
             selectedBands.forEach(slug => params.append("vertical_slugs", slug))
         }
 
-        // If we had tiers
-        // if (selectedTiers.length > 0) {
-        //    selectedTiers.forEach(tier => params.append("tiers", tier))
-        // }
+        if (selectedTiers.length > 0) {
+            selectedTiers.forEach(tier => params.append("tiers", tier))
+        }
 
         const url = `${getApiUrl()}/shows/?${params.toString()}`