chore: 논리적 관계 문서 및 글로벌 카테고리 마이그레이션 추가

- LOGICAL_RELATIONSHIPS.md 업데이트
- create_global_categories_table 마이그레이션 추가

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

LOGICAL_RELATIONSHIPS.md

@@ -1,6 +1,6 @@
 # 논리적 데이터베이스 관계 문서
 
-> **자동 생성**: 2026-01-26 22:07:37
+> **자동 생성**: 2026-01-29 00:51:16
 > **소스**: Eloquent 모델 관계 분석
 
 ## 📊 모델별 관계 현황
@@ -194,6 +194,35 @@ ### model_versions
 - **model()**: belongsTo → `models`
 - **bomTemplates()**: hasMany → `bom_templates`
 
+### documents
+**모델**: `App\Models\Documents\Document`
+
+- **creator()**: belongsTo → `users`
+- **updater()**: belongsTo → `users`
+- **approvals()**: hasMany → `document_approvals`
+- **data()**: hasMany → `document_data`
+- **attachments()**: hasMany → `document_attachments`
+- **linkable()**: morphTo → `(Polymorphic)`
+
+### document_approvals
+**모델**: `App\Models\Documents\DocumentApproval`
+
+- **document()**: belongsTo → `documents`
+- **user()**: belongsTo → `users`
+- **creator()**: belongsTo → `users`
+
+### document_attachments
+**모델**: `App\Models\Documents\DocumentAttachment`
+
+- **document()**: belongsTo → `documents`
+- **file()**: belongsTo → `files`
+- **creator()**: belongsTo → `users`
+
+### document_datas
+**모델**: `App\Models\Documents\DocumentData`
+
+- **document()**: belongsTo → `documents`
+
 ### estimates
 **모델**: `App\Models\Estimate\Estimate`