오늘 이슈(TodayIssue) 기능 구현

- TodayIssue 모델 및 마이그레이션 추가
- TodayIssueController, TodayIssueService 구현
- TodayIssueObserverService 및 Observer 패턴 적용
- DailyReportService 연동
- Swagger API 문서 업데이트
- 라우트 추가

LOGICAL_RELATIONSHIPS.md

@@ -1,6 +1,6 @@
 # 논리적 데이터베이스 관계 문서
 
-> **자동 생성**: 2026-01-21 10:38:32
+> **자동 생성**: 2026-01-21 20:45:47
 > **소스**: Eloquent 모델 관계 분석
 
 ## 📊 모델별 관계 현황
@@ -730,6 +730,11 @@ ### expected_expenses
 - **bankAccount()**: belongsTo → `bank_accounts`
 - **creator()**: belongsTo → `users`
 
+### expense_accounts
+**모델**: `App\Models\Tenants\ExpenseAccount`
+
+- **vendor()**: belongsTo → `clients`
+
 ### leaves
 **모델**: `App\Models\Tenants\Leave`
 
@@ -818,6 +823,12 @@ ### sales
 - **deposit()**: belongsTo → `deposits`
 - **creator()**: belongsTo → `users`
 
+### schedules
+**모델**: `App\Models\Tenants\Schedule`
+
+- **creator()**: belongsTo → `users`
+- **updater()**: belongsTo → `users`
+
 ### setting_field_defs
 **모델**: `App\Models\Tenants\SettingFieldDef`
 
@@ -923,6 +934,10 @@ ### tenant_user_profiles
 - **rankPosition()**: belongsTo → `positions`
 - **titlePosition()**: belongsTo → `positions`
 
+### today_issues
+**모델**: `App\Models\Tenants\TodayIssue`
+
+
 ### withdrawals
 **모델**: `App\Models\Tenants\Withdrawal`