feat: Implement JWT authentication for client API and add transaction verification endpoint.

app/Models/Customer.php

@@ -7,8 +7,9 @@ use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Laravel\Sanctum\HasApiTokens;
+use Tymon\JWTAuth\Contracts\JWTSubject;
 
-class Customer extends Authenticatable
+class Customer extends Authenticatable implements JWTSubject
 {
     use HasFactory, HasApiTokens, HasUuids, SoftDeletes;
 
@@ -228,4 +229,14 @@ class Customer extends Authenticatable
     {
         return $this->gender?->label() ?? 'Khác';
     }
+
+    public function getJWTIdentifier()
+    {
+        return $this->getKey();
+    }
+
+    public function getJWTCustomClaims()
+    {
+        return [];
+    }
 }