feat(Admin/Company): 擴充業務類型與合約期間功能，補齊多語系翻譯詞條

app/Models/System/Company.php

@@ -16,18 +16,22 @@ class Company extends Model
     protected $fillable = [
         'name',
         'code',
+        'original_type',
+        'current_type',
         'tax_id',
         'contact_name',
         'contact_phone',
         'contact_email',
         'status',
-        'valid_until',
+        'start_date',
+        'end_date',
         'note',
         'settings',
     ];
 
     protected $casts = [
-        'valid_until' => 'date',
+        'start_date' => 'date',
+        'end_date' => 'date',
         'status' => 'integer',
         'settings' => 'array',
     ];