feat(security): support expiration on API tokens with warning notifications

Add optional expiration to personal API tokens. Users pick a duration
(1/7/30/60/90 days or Never) at creation time. Expired tokens are
rejected by Sanctum, pruned hourly by sanctum:prune-expired, and a
team notification fires ~24h before expiry so owners can rotate
before API calls start failing.

- ApiTokens Livewire component stores expires_at from expiresInDays
- Rework issued-tokens UI from card grid to table (matches other views)
- New ApiTokenExpirationWarningJob scheduled hourly (idempotent via RateLimiter)
- New ApiTokenExpiringNotification (email/discord/telegram/slack/pushover)
- api_token_expiring added to alwaysSendEvents so users cannot silence
  expiry warnings from the per-event notification toggle UI
- sanctum:prune-expired cadence moved from daily to hourly

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

app/Console/Kernel.php

@@ -2,6 +2,7 @@
 
 namespace App\Console;
 
+use App\Jobs\ApiTokenExpirationWarningJob;
 use App\Jobs\CheckForUpdatesJob;
 use App\Jobs\CheckHelperImageJob;
 use App\Jobs\CheckTraefikVersionJob;
@@ -41,6 +42,8 @@ class Kernel extends ConsoleKernel
 
         // $this->scheduleInstance->job(new CleanupStaleMultiplexedConnections)->hourly();
         $this->scheduleInstance->command('cleanup:redis --clear-locks')->daily();
+        $this->scheduleInstance->command('sanctum:prune-expired --hours=1')->hourly()->onOneServer();
+        $this->scheduleInstance->job(new ApiTokenExpirationWarningJob)->hourly()->onOneServer();
 
         if (isDev()) {
             // Instance Jobs