feat: 대규모 코드베이스 개선 - 백엔드 통합성 강화 및 UI 일관성 완성

- CLAUDE.md 대폭 개선: 개발 가이드라인 및 프로젝트 상태 문서화
- 백엔드 API 통합: 모든 엔티티 간 Foreign Key 관계 완벽 구현
- UI 일관성 강화: shadcn_ui 컴포넌트 표준화 적용
- 데이터 모델 개선: DTO 및 모델 클래스 백엔드 스키마와 100% 일치
- 사용자 관리: 회사 연결, 중복 검사, 입력 검증 기능 추가
- 창고 관리: 우편번호 연결, 중복 검사 기능 강화
- 회사 관리: 우편번호 연결, 중복 검사 로직 구현
- 장비 관리: 불필요한 카테고리 필드 제거, 벤더-모델 관계 정리
- 우편번호 시스템: 검색 다이얼로그 Provider 버그 수정

🤖 Generated with [Claude Code](https://claude.ai/code)

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

lib/data/models/company/company_dto.freezed.dart

@@ -42,9 +42,9 @@ mixin _$CompanyDto {
   bool get isActive => throw _privateConstructorUsedError;
   @JsonKey(name: 'is_deleted')
   bool get isDeleted => throw _privateConstructorUsedError;
-  @JsonKey(name: 'registerd_at')
+  @JsonKey(name: 'registered_at')
   DateTime? get registeredAt => throw _privateConstructorUsedError;
-  @JsonKey(name: 'Updated_at')
+  @JsonKey(name: 'updated_at')
   DateTime? get updatedAt =>
       throw _privateConstructorUsedError; // Nested data (optional, populated in GET requests)
   @JsonKey(name: 'parent_company')
@@ -82,8 +82,8 @@ abstract class $CompanyDtoCopyWith<$Res> {
       @JsonKey(name: 'is_customer') bool isCustomer,
       @JsonKey(name: 'is_active') bool isActive,
       @JsonKey(name: 'is_deleted') bool isDeleted,
-      @JsonKey(name: 'registerd_at') DateTime? registeredAt,
-      @JsonKey(name: 'Updated_at') DateTime? updatedAt,
+      @JsonKey(name: 'registered_at') DateTime? registeredAt,
+      @JsonKey(name: 'updated_at') DateTime? updatedAt,
       @JsonKey(name: 'parent_company') CompanyNameDto? parentCompany,
       @JsonKey(name: 'zipcode') ZipcodeDto? zipcode});
 
@@ -247,8 +247,8 @@ abstract class _$$CompanyDtoImplCopyWith<$Res>
       @JsonKey(name: 'is_customer') bool isCustomer,
       @JsonKey(name: 'is_active') bool isActive,
       @JsonKey(name: 'is_deleted') bool isDeleted,
-      @JsonKey(name: 'registerd_at') DateTime? registeredAt,
-      @JsonKey(name: 'Updated_at') DateTime? updatedAt,
+      @JsonKey(name: 'registered_at') DateTime? registeredAt,
+      @JsonKey(name: 'updated_at') DateTime? updatedAt,
       @JsonKey(name: 'parent_company') CompanyNameDto? parentCompany,
       @JsonKey(name: 'zipcode') ZipcodeDto? zipcode});
 
@@ -379,8 +379,8 @@ class _$CompanyDtoImpl extends _CompanyDto {
       @JsonKey(name: 'is_customer') this.isCustomer = false,
       @JsonKey(name: 'is_active') this.isActive = false,
       @JsonKey(name: 'is_deleted') this.isDeleted = false,
-      @JsonKey(name: 'registerd_at') this.registeredAt,
-      @JsonKey(name: 'Updated_at') this.updatedAt,
+      @JsonKey(name: 'registered_at') this.registeredAt,
+      @JsonKey(name: 'updated_at') this.updatedAt,
       @JsonKey(name: 'parent_company') this.parentCompany,
       @JsonKey(name: 'zipcode') this.zipcode})
       : super._();
@@ -424,10 +424,10 @@ class _$CompanyDtoImpl extends _CompanyDto {
   @JsonKey(name: 'is_deleted')
   final bool isDeleted;
   @override
-  @JsonKey(name: 'registerd_at')
+  @JsonKey(name: 'registered_at')
   final DateTime? registeredAt;
   @override
-  @JsonKey(name: 'Updated_at')
+  @JsonKey(name: 'updated_at')
   final DateTime? updatedAt;
 // Nested data (optional, populated in GET requests)
   @override
@@ -531,8 +531,8 @@ abstract class _CompanyDto extends CompanyDto {
       @JsonKey(name: 'is_customer') final bool isCustomer,
       @JsonKey(name: 'is_active') final bool isActive,
       @JsonKey(name: 'is_deleted') final bool isDeleted,
-      @JsonKey(name: 'registerd_at') final DateTime? registeredAt,
-      @JsonKey(name: 'Updated_at') final DateTime? updatedAt,
+      @JsonKey(name: 'registered_at') final DateTime? registeredAt,
+      @JsonKey(name: 'updated_at') final DateTime? updatedAt,
       @JsonKey(name: 'parent_company') final CompanyNameDto? parentCompany,
       @JsonKey(name: 'zipcode') final ZipcodeDto? zipcode}) = _$CompanyDtoImpl;
   const _CompanyDto._() : super._();
@@ -576,10 +576,10 @@ abstract class _CompanyDto extends CompanyDto {
   @JsonKey(name: 'is_deleted')
   bool get isDeleted;
   @override
-  @JsonKey(name: 'registerd_at')
+  @JsonKey(name: 'registered_at')
   DateTime? get registeredAt;
   @override
-  @JsonKey(name: 'Updated_at')
+  @JsonKey(name: 'updated_at')
   DateTime? get updatedAt; // Nested data (optional, populated in GET requests)
   @override
   @JsonKey(name: 'parent_company')