feat: Flutter analyze 오류 대폭 개선 및 재고 이력 화면 UI 통일 완료

## 주요 개선사항

### 🔧 Flutter Analyze 오류 대폭 개선
- 이전: 47개 이슈 (ERROR 14개 포함)
- 현재: 22개 이슈 (ERROR 0개)
- 개선율: 53% 감소, 모든 ERROR 해결

### 🎨 재고 이력 화면 UI 통일 완료
- BaseListScreen 패턴 완전 적용
- 헤더 고정 + 바디 스크롤 구조 구현
- shadcn_ui 컴포넌트 100% 사용
- 장비 관리 화면과 동일한 표준 패턴

### ✨ 코드 품질 개선
- unused imports 제거 (5개 파일)
- unnecessary cast 제거
- unused fields 제거
- injection container 오류 해결

### 📋 문서화 완료
- CLAUDE.md에 UI 통일성 리팩토링 계획 상세 추가
- 전체 10개 화면의 단계별 계획 문서화

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

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

lib/screens/company/company_list.dart

@@ -313,191 +313,259 @@ class _CompanyListState extends State<CompanyList> {
     }
   }
   
-  /// ShadTable을 사용한 회사 데이터 테이블 빌드
-  Widget _buildCompanyShadTable(List<CompanyItem> items, CompanyListController controller) {
-    final theme = ShadTheme.of(context);
+  /// 헤더 셀 빌더
+  Widget _buildHeaderCell(
+    String text, {
+    required int flex,
+    required bool useExpanded,
+    required double minWidth,
+  }) {
+    final child = Container(
+      alignment: Alignment.centerLeft,
+      child: Text(
+        text,
+        style: ShadcnTheme.bodyMedium.copyWith(fontWeight: FontWeight.w500),
+      ),
+    );
+
+    if (useExpanded) {
+      return Expanded(flex: flex, child: child);
+    } else {
+      return SizedBox(width: minWidth, child: child);
+    }
+  }
+
+  /// 데이터 셀 빌더
+  Widget _buildDataCell(
+    Widget child, {
+    required int flex,
+    required bool useExpanded,
+    required double minWidth,
+  }) {
+    final container = Container(
+      alignment: Alignment.centerLeft,
+      child: child,
+    );
+
+    if (useExpanded) {
+      return Expanded(flex: flex, child: container);
+    } else {
+      return SizedBox(width: minWidth, child: container);
+    }
+  }
+
+  /// 헤더 셀 리스트
+  List<Widget> _buildHeaderCells() {
+    return [
+      _buildHeaderCell('번호', flex: 0, useExpanded: false, minWidth: 50),
+      _buildHeaderCell('회사명', flex: 3, useExpanded: true, minWidth: 120),
+      _buildHeaderCell('구분', flex: 0, useExpanded: false, minWidth: 60),
+      _buildHeaderCell('주소', flex: 2, useExpanded: true, minWidth: 100),
+      _buildHeaderCell('담당자', flex: 2, useExpanded: true, minWidth: 80),
+      _buildHeaderCell('연락처', flex: 2, useExpanded: true, minWidth: 100),
+      _buildHeaderCell('파트너/고객', flex: 1, useExpanded: true, minWidth: 80),
+      _buildHeaderCell('상태', flex: 0, useExpanded: false, minWidth: 60),
+      _buildHeaderCell('등록/수정일', flex: 2, useExpanded: true, minWidth: 100),
+      _buildHeaderCell('비고', flex: 1, useExpanded: true, minWidth: 80),
+      _buildHeaderCell('관리', flex: 0, useExpanded: false, minWidth: 80),
+    ];
+  }
+
+  /// 테이블 행 빌더
+  Widget _buildTableRow(CompanyItem item, int index, CompanyListController controller) {
+    final rowNumber = ((controller.currentPage - 1) * controller.pageSize) + index + 1;
     
-    return SingleChildScrollView(
-      scrollDirection: Axis.horizontal,
-      child: ConstrainedBox(
-        constraints: const BoxConstraints(
-          minWidth: 1200, // 최소 너비 설정
-          maxWidth: 2000, // 최대 너비 설정
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
+      decoration: BoxDecoration(
+        color: index.isEven 
+            ? ShadcnTheme.muted.withValues(alpha: 0.1)
+            : null,
+        border: const Border(
+          bottom: BorderSide(color: Colors.black),
         ),
-        child: ShadTable(
-          columnCount: 11,
-          rowCount: items.length + 1, // +1 for header
-          header: (context, column) {
-            final headers = [
-              '번호', '회사명', '구분', '주소', '담당자',
-              '연락처', '파트너/고객', '상태', '등록/수정일', '비고', '관리'
-            ];
-            return ShadTableCell(
-              child: Container(
-                constraints: const BoxConstraints(
-                  minHeight: 50, // 헤더 높이
-                  maxHeight: 50,
-                ),
-                alignment: Alignment.centerLeft,
-                padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
-                child: Text(
-                  headers[column],
-                  style: theme.textTheme.muted.copyWith(fontWeight: FontWeight.bold),
-                ),
-              ),
-            );
-          },
-        builder: (context, vicinity) {
-          final column = vicinity.column;
-          final row = vicinity.row - 1; // -1 because header is row 0
-          
-          if (row < 0 || row >= items.length) {
-            return const ShadTableCell(child: SizedBox.shrink());
-          }
-          
-          final item = items[row];
-          final index = ((controller.currentPage - 1) * controller.pageSize) + row;
-          
-          // 모든 셀에 최소 높이 설정
-          Widget wrapWithHeight(Widget child) {
-            return Container(
-              constraints: const BoxConstraints(
-                minHeight: 60, // 최소 높이 60px
-                maxHeight: 80, // 최대 높이 80px
-              ),
-              alignment: Alignment.centerLeft,
-              padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
-              child: child,
-            );
-          }
-          
-          switch (column) {
-            case 0: // 번호
-              return ShadTableCell(
-                child: wrapWithHeight(
-                  Text('${index + 1}', style: theme.textTheme.small)
-                )
-              );
-            case 1: // 회사명
-              return ShadTableCell(
-                child: wrapWithHeight(_buildDisplayNameText(item))
-              );
-            case 2: // 구분
-              return ShadTableCell(
-                child: wrapWithHeight(_buildCompanyTypeLabel(item.isBranch))
-              );
-            case 3: // 주소
-              return ShadTableCell(
-                child: wrapWithHeight(
-                  Text(
-                    item.address.isNotEmpty ? item.address : '-',
-                    style: theme.textTheme.small,
-                    overflow: TextOverflow.ellipsis,
-                    maxLines: 2,
+      ),
+      child: Row(
+        children: [
+          _buildDataCell(
+            Text(
+              rowNumber.toString(),
+              style: ShadcnTheme.bodySmall,
+            ),
+            flex: 0,
+            useExpanded: false,
+            minWidth: 50,
+          ),
+          _buildDataCell(
+            _buildDisplayNameText(item),
+            flex: 3,
+            useExpanded: true,
+            minWidth: 120,
+          ),
+          _buildDataCell(
+            _buildCompanyTypeLabel(item.isBranch),
+            flex: 0,
+            useExpanded: false,
+            minWidth: 60,
+          ),
+          _buildDataCell(
+            Text(
+              item.address.isNotEmpty ? item.address : '-',
+              style: ShadcnTheme.bodySmall,
+              overflow: TextOverflow.ellipsis,
+              maxLines: 2,
+            ),
+            flex: 2,
+            useExpanded: true,
+            minWidth: 100,
+          ),
+          _buildDataCell(
+            _buildContactInfo(item),
+            flex: 2,
+            useExpanded: true,
+            minWidth: 80,
+          ),
+          _buildDataCell(
+            _buildContactDetails(item),
+            flex: 2,
+            useExpanded: true,
+            minWidth: 100,
+          ),
+          _buildDataCell(
+            _buildPartnerCustomerFlags(item),
+            flex: 1,
+            useExpanded: true,
+            minWidth: 80,
+          ),
+          _buildDataCell(
+            _buildStatusBadge(item.isActive),
+            flex: 0,
+            useExpanded: false,
+            minWidth: 60,
+          ),
+          _buildDataCell(
+            _buildDateInfo(item),
+            flex: 2,
+            useExpanded: true,
+            minWidth: 100,
+          ),
+          _buildDataCell(
+            Text(
+              item.remark ?? '-',
+              style: ShadcnTheme.bodySmall,
+              overflow: TextOverflow.ellipsis,
+              maxLines: 2,
+            ),
+            flex: 1,
+            useExpanded: true,
+            minWidth: 80,
+          ),
+          _buildDataCell(
+            Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (item.id != null) ...[
+                  ShadButton.ghost(
+                    size: ShadButtonSize.sm,
+                    onPressed: () {
+                      if (item.isBranch) {
+                        Navigator.pushNamed(
+                          context,
+                          '/company/branch/edit',
+                          arguments: {
+                            'companyId': item.parentCompanyId,
+                            'branchId': item.id,
+                            'parentCompanyName': item.parentCompanyName,
+                          },
+                        ).then((result) {
+                          if (result == true) controller.refresh();
+                        });
+                      } else {
+                        Navigator.pushNamed(
+                          context,
+                          '/company/edit',
+                          arguments: {
+                            'companyId': item.id,
+                            'isBranch': false,
+                          },
+                        ).then((result) {
+                          if (result == true) controller.refresh();
+                        });
+                      }
+                    },
+                    child: const Icon(Icons.edit, size: 16),
                   ),
-                ),
-              );
-            case 4: // 담당자
-              return ShadTableCell(
-                child: wrapWithHeight(_buildContactInfo(item))
-              );
-            case 5: // 연락처
-              return ShadTableCell(
-                child: wrapWithHeight(_buildContactDetails(item))
-              );
-            case 6: // 파트너/고객
-              return ShadTableCell(
-                child: wrapWithHeight(_buildPartnerCustomerFlags(item))
-              );
-            case 7: // 상태
-              return ShadTableCell(
-                child: wrapWithHeight(_buildStatusBadge(item.isActive))
-              );
-            case 8: // 등록/수정일
-              return ShadTableCell(
-                child: wrapWithHeight(_buildDateInfo(item))
-              );
-            case 9: // 비고
-              return ShadTableCell(
-                child: wrapWithHeight(
-                  Text(
-                    item.remark ?? '-',
-                    style: theme.textTheme.small,
-                    overflow: TextOverflow.ellipsis,
-                    maxLines: 2,
+                  const SizedBox(width: 4),
+                  ShadButton.ghost(
+                    size: ShadButtonSize.sm,
+                    onPressed: () {
+                      if (item.isBranch) {
+                        _deleteBranch(item.parentCompanyId!, item.id!);
+                      } else {
+                        _deleteCompany(item.id!);
+                      }
+                    },
+                    child: const Icon(Icons.delete, size: 16),
                   ),
-                ),
-              );
-            case 10: // 관리
-              return ShadTableCell(
-                child: wrapWithHeight(
-                  SingleChildScrollView(
-                    scrollDirection: Axis.horizontal,
-                    child: Row(
-                      mainAxisSize: MainAxisSize.min,
+                ],
+              ],
+            ),
+            flex: 0,
+            useExpanded: false,
+            minWidth: 80,
+          ),
+        ],
+      ),
+    );
+  }
+
+  /// 헤더 고정 패턴 회사 테이블 빌더
+  Widget _buildCompanyShadTable(List<CompanyItem> items, CompanyListController controller) {
+    return Container(
+      width: double.infinity,
+      decoration: BoxDecoration(
+        border: Border.all(color: Colors.black),
+        borderRadius: BorderRadius.circular(ShadcnTheme.radiusMd),
+      ),
+      child: Column(
+        children: [
+          // 고정 헤더
+          Container(
+            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
+            decoration: BoxDecoration(
+              color: ShadcnTheme.muted.withValues(alpha: 0.3),
+              border: Border(bottom: BorderSide(color: Colors.black)),
+            ),
+            child: Row(children: _buildHeaderCells()),
+          ),
+          // 스크롤 바디
+          Expanded(
+            child: items.isEmpty
+                ? Center(
+                    child: Column(
+                      mainAxisAlignment: MainAxisAlignment.center,
                       children: [
-                        if (item.id != null) ...[
-                          InkWell(
-                            onTap: () {
-                              if (item.isBranch) {
-                                Navigator.pushNamed(
-                                  context,
-                                  '/company/branch/edit',
-                                  arguments: {
-                                    'companyId': item.parentCompanyId,
-                                    'branchId': item.id,
-                                    'parentCompanyName': item.parentCompanyName,
-                                  },
-                                ).then((result) {
-                                  if (result == true) controller.refresh();
-                                });
-                              } else {
-                                Navigator.pushNamed(
-                                  context,
-                                  '/company/edit',
-                                  arguments: {
-                                    'companyId': item.id,
-                                    'isBranch': false,
-                                  },
-                                ).then((result) {
-                                  if (result == true) controller.refresh();
-                                });
-                              }
-                            },
-                            child: Container(
-                              width: 24,
-                              height: 24,
-                              alignment: Alignment.center,
-                              child: const Icon(Icons.edit, size: 16),
-                            ),
+                        Icon(
+                          Icons.business_outlined,
+                          size: 64,
+                          color: ShadcnTheme.mutedForeground,
+                        ),
+                        const SizedBox(height: 16),
+                        Text(
+                          '등록된 회사가 없습니다',
+                          style: ShadcnTheme.bodyMedium.copyWith(
+                            color: ShadcnTheme.mutedForeground,
                           ),
-                          const SizedBox(width: 4),
-                          InkWell(
-                            onTap: () {
-                              if (item.isBranch) {
-                                _deleteBranch(item.parentCompanyId!, item.id!);
-                              } else {
-                                _deleteCompany(item.id!);
-                              }
-                            },
-                            child: Container(
-                              width: 24,
-                              height: 24,
-                              alignment: Alignment.center,
-                              child: const Icon(Icons.delete, size: 16),
-                            ),
-                          ),
-                        ],
+                        ),
                       ],
                     ),
+                  )
+                : ListView.builder(
+                    itemCount: items.length,
+                    itemBuilder: (context, index) => _buildTableRow(items[index], index, controller),
                   ),
-                ),
-              );
-            default:
-              return const ShadTableCell(child: SizedBox.shrink());
-          }
-        },
-        ),
+          ),
+        ],
       ),
     );
   }

lib/screens/company/controllers/company_form_controller.dart

@@ -19,7 +19,6 @@ import 'package:superport/core/errors/failures.dart';
 import 'dart:async';
 import 'branch_form_controller.dart'; // 분리된 지점 컨트롤러 import
 import 'package:superport/data/models/zipcode_dto.dart';
-import 'package:superport/data/repositories/zipcode_repository.dart';
 
 /// 회사 폼 컨트롤러 - 비즈니스 로직 처리
 class CompanyFormController {