Add team, developers, PDF type, and QR rendering dependency.

Enables account collaboration, API tokens, hosted PDF codes, and fixes QR detail 500s by declaring chillerlan/php-qrcode.

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

app/Models/User.php

@@ -8,6 +8,7 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\HasOne;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
+use Illuminate\Support\Collection;
 use Laravel\Sanctum\HasApiTokens;
 
 /**
@@ -27,6 +28,26 @@ class User extends Authenticatable
         return ['email_verified_at' => 'datetime', 'password' => 'hashed'];
     }
 
+    public function memberships(): HasMany
+    {
+        return $this->hasMany(QrTeamMember::class, 'user_id')
+            ->where('status', QrTeamMember::STATUS_ACTIVE);
+    }
+
+    public function canAccessAccount(int $accountId): bool
+    {
+        return $accountId === $this->id
+            || $this->memberships()->where('account_id', $accountId)->exists();
+    }
+
+    /** @return Collection<int, User> */
+    public function accessibleAccounts(): Collection
+    {
+        $ids = $this->memberships()->pluck('account_id')->all();
+
+        return collect([$this])->merge(self::whereIn('id', $ids)->get())->unique('id')->values();
+    }
+
     public function qrWallet(): HasOne
     {
         return $this->hasOne(QrWallet::class);