fix: resolve plan selection off-by-one error in activation key generator

app/Filament/Pages/GenerateActivationKeys.php

@@ -56,7 +56,7 @@ class GenerateActivationKeys extends Page implements HasForms, HasTable
                 ->options(function () {
                     return Plan::with('planTier')
                         ->get()
-                        ->map(function ($plan) {
+                        ->mapWithKeys(function ($plan) {
                             $tierName = $plan->planTier ? $plan->planTier->name : '';
                             $billingCycle = $plan->getBillingCycleDisplay();
                             $name = $plan->name;
@@ -68,7 +68,7 @@ class GenerateActivationKeys extends Page implements HasForms, HasTable
                                 $name .= " - {$billingCycle}";
                             }
 
-                            return $name;
+                            return [$plan->id => $name];
                         })
                         ->toArray();
                 })