feat: 트리거 감사로그 operation_id 컬럼 추가 및 요청별 UUID 설정

- trigger_audit_logs 테이블에 operation_id(VARCHAR 36) 컬럼 추가
- ix_trig_operation 인덱스 생성 (일괄 롤백 조회용)
- SetAuditSessionVariables 미들웨어에서 요청마다 @sam_operation_id UUID 설정

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

LOGICAL_RELATIONSHIPS.md

@@ -1,6 +1,6 @@
 # 논리적 데이터베이스 관계 문서
 
-> **자동 생성**: 2026-02-13 11:19:58
+> **자동 생성**: 2026-02-12 20:26:02
 > **소스**: Eloquent 모델 관계 분석
 
 ## 📊 모델별 관계 현황

app/Http/Middleware/SetAuditSessionVariables.php

@@ -5,12 +5,16 @@
 use Closure;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Str;
 use Symfony\Component\HttpFoundation\Response;
 
 class SetAuditSessionVariables
 {
     public function handle(Request $request, Closure $next): Response
     {
+        // 요청 단위 operation_id (인증 여부와 무관하게 항상 설정)
+        DB::statement('SET @sam_operation_id = ?', [Str::uuid()->toString()]);
+
         if (auth()->check()) {
             DB::statement('SET @sam_actor_id = ?', [auth()->id()]);
             DB::statement('SET @sam_session_info = ?', [

database/migrations/2026_02_13_100000_add_operation_id_to_trigger_audit_logs.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        // 파티셔닝된 테이블에 컬럼 추가
+        DB::statement("
+            ALTER TABLE trigger_audit_logs
+            ADD COLUMN operation_id VARCHAR(36) DEFAULT NULL COMMENT '작업 단위 ID (요청별 UUID)' AFTER session_info
+        ");
+
+        // operation_id 인덱스 (일괄 롤백 조회용)
+        DB::statement("
+            CREATE INDEX ix_trig_operation
+                ON trigger_audit_logs (operation_id, created_at)
+        ");
+    }
+
+    public function down(): void
+    {
+        DB::statement('DROP INDEX ix_trig_operation ON trigger_audit_logs');
+        DB::statement('ALTER TABLE trigger_audit_logs DROP COLUMN operation_id');
+    }
+};