Feat: Complete CBT PDF upload, AI parsing, and MinIO storage integration

src/app/dashboard/cbt/page.tsx

@@ -15,6 +15,7 @@ interface TestData {
   exam_pattern: string;
   total_time: number;
   difficulty: string;
+  scheduled_date?: string;
 }
 
 export default function CBTPage() {
@@ -116,6 +117,11 @@ export default function CBTPage() {
               const isAttempted = !!attempt;
               const isLocked = !hasAccessTo("weekly-test-series");
               
+              // Date logic
+              const now = new Date();
+              const scheduledTime = exam.scheduled_date ? new Date(exam.scheduled_date) : now;
+              const isUpcoming = scheduledTime > now;
+              
               return (
               <Card key={exam.id} className={`hover:border-[#00F0FF]/50 hover:shadow-[0_0_15px_-5px_#00F0FF] transition-all group ${isAttempted ? 'border-primary/20' : ''} ${isLocked ? 'opacity-80' : ''}`}>
                 <CardContent className="p-6">
@@ -123,7 +129,11 @@ export default function CBTPage() {
                     <Badge variant="outline" className="bg-[#00F0FF]/10 text-[#00F0FF] border-[#00F0FF]/20">
                       {exam.type} Test
                     </Badge>
-                    {isLocked ? (
+                    {isUpcoming ? (
+                      <Badge variant="secondary" className="bg-yellow-500/10 text-yellow-500 border-yellow-500/20">
+                        Upcoming
+                      </Badge>
+                    ) : isLocked ? (
                       <Badge variant="outline" className="bg-red-500/10 text-red-500 border-red-500/20 flex items-center gap-1">
                         <Lock size={12} /> Premium
                       </Badge>
@@ -137,10 +147,17 @@ export default function CBTPage() {
                     {exam.title}
                   </h3>
                   <div className="text-sm text-muted-foreground space-y-1 mb-6">
-                    <div className="font-medium text-foreground">Available Now</div>
+                    <div className="font-medium text-foreground">
+                      {isUpcoming ? `Available on ${formatDate(exam.scheduled_date!)}` : 'Available Now'}
+                    </div>
                     <div>{exam.total_time} Min • {exam.difficulty} Difficulty</div>
                   </div>
-                  {isLocked ? (
+                  
+                  {isUpcoming ? (
+                    <Button disabled className="w-full gap-2 rounded-xl bg-secondary text-muted-foreground font-bold">
+                      <Clock size={16} /> Starts Soon
+                    </Button>
+                  ) : isLocked ? (
                     <Button 
                       onClick={() => setShowUpgradeModal(true)}
                       className="w-full gap-2 rounded-xl bg-secondary text-muted-foreground border border-dashed border-border hover:border-[#00F0FF]/50 hover:text-foreground font-bold"