Initial Ladill Meet release.

Phases 0–18: core meetings, webinar, breakouts, team chat, live streaming, town hall, billing, and Ladill Mail calendar wiring.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Models/WebinarRegistration.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Concerns\BelongsToOwner;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Support\Str;
+
+class WebinarRegistration extends Model
+{
+    use BelongsToOwner;
+
+    protected $table = 'meet_webinar_registrations';
+
+    protected $fillable = [
+        'uuid', 'owner_ref', 'room_id', 'email', 'display_name', 'status',
+        'access_token', 'approved_at', 'metadata',
+    ];
+
+    protected function casts(): array
+    {
+        return ['approved_at' => 'datetime', 'metadata' => 'array'];
+    }
+
+    protected static function booted(): void
+    {
+        static::creating(function (WebinarRegistration $reg) {
+            if (empty($reg->uuid)) {
+                $reg->uuid = (string) Str::uuid();
+            }
+            if (empty($reg->access_token)) {
+                $reg->access_token = Str::random(48);
+            }
+        });
+    }
+
+    public function getRouteKeyName(): string
+    {
+        return 'uuid';
+    }
+
+    public function room(): BelongsTo
+    {
+        return $this->belongsTo(Room::class, 'room_id');
+    }
+
+    public function isApproved(): bool
+    {
+        return $this->status === 'approved';
+    }
+}