feat: [결재] 양식 마이그레이션 12종 + 반려이력/재상신

- 재직/경력/위촉증명서, 사직서, 사용인감계, 위임장
- 이사회의사록, 견적서, 공문서, 연차사용촉진 1차/2차
- 지출결의서 body_template 고도화
- rejection_history, resubmit_count, drafter_read_at 컬럼
- Document-Approval 브릿지 연동 (linkable)
- 수신함 날짜 범위 필터 추가

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

app/Http/Requests/Approval/InboxIndexRequest.php

@@ -22,6 +22,8 @@ public function rules(): array
             'sort_dir' => 'nullable|string|in:asc,desc',
             'per_page' => 'nullable|integer|min:1',
             'page' => 'nullable|integer|min:1',
+            'start_date' => 'nullable|date_format:Y-m-d',
+            'end_date' => 'nullable|date_format:Y-m-d|after_or_equal:start_date',
         ];
     }
 }

app/Models/Tenants/Approval.php

@@ -8,6 +8,7 @@
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
 /**
@@ -55,6 +56,8 @@ class Approval extends Model
         'completed_at',
         'current_step',
         'attachments',
+        'linkable_type',
+        'linkable_id',
         'created_by',
         'updated_by',
         'deleted_by',
@@ -135,6 +138,14 @@ public function referenceSteps(): HasMany
             ->orderBy('step_order');
     }
 
+    /**
+     * 연결 대상 (Document 등)
+     */
+    public function linkable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+
     /**
      * 생성자
      */

app/Services/ApprovalService.php

@@ -2,6 +2,7 @@
 
 namespace App\Services;
 
+use App\Models\Documents\Document;
 use App\Models\Tenants\Approval;
 use App\Models\Tenants\ApprovalForm;
 use App\Models\Tenants\ApprovalLine;
@@ -446,6 +447,14 @@ public function inbox(array $params): LengthAwarePaginator
             }
         }
 
+        // 날짜 범위 필터
+        if (! empty($params['start_date'])) {
+            $query->whereDate('created_at', '>=', $params['start_date']);
+        }
+        if (! empty($params['end_date'])) {
+            $query->whereDate('created_at', '<=', $params['end_date']);
+        }
+
         // 정렬
         $sortBy = $params['sort_by'] ?? 'created_at';
         $sortDir = $params['sort_dir'] ?? 'desc';
@@ -559,7 +568,7 @@ public function show(int $id): Approval
     {
         $tenantId = $this->tenantId();
 
-        return Approval::query()
+        $approval = Approval::query()
             ->where('tenant_id', $tenantId)
             ->with([
                 'form:id,name,code,category,template',
@@ -571,6 +580,19 @@ public function show(int $id): Approval
                 'steps.approver.tenantProfile.department:id,name',
             ])
             ->findOrFail($id);
+
+        // Document 브릿지: 연결된 문서 데이터 로딩
+        if ($approval->linkable_type === Document::class) {
+            $approval->load([
+                'linkable.template',
+                'linkable.template.approvalLines',
+                'linkable.data',
+                'linkable.approvals.user:id,name',
+                'linkable.attachments',
+            ]);
+        }
+
+        return $approval;
     }
 
     /**
@@ -834,6 +856,9 @@ public function approve(int $id, ?string $comment = null): Approval
             $approval->updated_by = $userId;
             $approval->save();
 
+            // Document 브릿지 동기화
+            $this->syncToLinkedDocument($approval);
+
             return $approval->fresh([
                 'form:id,name,code,category',
                 'drafter:id,name',
@@ -887,6 +912,9 @@ public function reject(int $id, string $comment): Approval
             $approval->updated_by = $userId;
             $approval->save();
 
+            // Document 브릿지 동기화
+            $this->syncToLinkedDocument($approval);
+
             return $approval->fresh([
                 'form:id,name,code,category',
                 'drafter:id,name',
@@ -926,6 +954,9 @@ public function cancel(int $id): Approval
             $approval->updated_by = $userId;
             $approval->save();
 
+            // Document 브릿지 동기화 (steps 삭제 전에 실행)
+            $this->syncToLinkedDocument($approval);
+
             // 결재 단계들 삭제
             $approval->steps()->delete();
 
@@ -936,6 +967,57 @@ public function cancel(int $id): Approval
         });
     }
 
+    /**
+     * Approval → Document 브릿지 동기화
+     * 결재 승인/반려/회수 시 연결된 Document의 상태와 결재란을 동기화
+     */
+    private function syncToLinkedDocument(Approval $approval): void
+    {
+        if ($approval->linkable_type !== Document::class) {
+            return;
+        }
+
+        $document = Document::find($approval->linkable_id);
+        if (! $document) {
+            return;
+        }
+
+        // approval_steps → document_approvals 동기화 (승인자 이름/시각 반영)
+        foreach ($approval->steps as $step) {
+            if ($step->status === ApprovalStep::STATUS_PENDING) {
+                continue;
+            }
+
+            $docApproval = $document->approvals()
+                ->where('step', $step->step_order)
+                ->first();
+
+            if ($docApproval) {
+                $docApproval->update([
+                    'status' => strtoupper($step->status),
+                    'acted_at' => $step->acted_at,
+                    'comment' => $step->comment,
+                ]);
+            }
+        }
+
+        // Document 전체 상태 동기화
+        $documentStatus = match ($approval->status) {
+            Approval::STATUS_APPROVED => Document::STATUS_APPROVED,
+            Approval::STATUS_REJECTED => Document::STATUS_REJECTED,
+            Approval::STATUS_CANCELLED => Document::STATUS_CANCELLED,
+            default => Document::STATUS_PENDING,
+        };
+
+        $document->update([
+            'status' => $documentStatus,
+            'completed_at' => in_array($approval->status, [
+                Approval::STATUS_APPROVED,
+                Approval::STATUS_REJECTED,
+            ]) ? now() : null,
+        ]);
+    }
+
     /**
      * 참조 열람 처리
      */

database/migrations/2026_02_27_200000_add_linkable_to_approvals_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * 결재(approvals) 테이블에 연결 대상(linkable) 컬럼 추가
+     * - Document 시스템과 Approval 시스템을 브릿지하기 위한 다형성 관계
+     */
+    public function up(): void
+    {
+        Schema::table('approvals', function (Blueprint $table) {
+            $table->string('linkable_type')->nullable()->after('attachments')->comment('연결 대상 모델 (예: App\\Models\\Documents\\Document)');
+            $table->unsignedBigInteger('linkable_id')->nullable()->after('linkable_type')->comment('연결 대상 ID');
+            $table->index(['linkable_type', 'linkable_id'], 'idx_linkable');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('approvals', function (Blueprint $table) {
+            $table->dropIndex('idx_linkable');
+            $table->dropColumn(['linkable_type', 'linkable_id']);
+        });
+    }
+};

database/migrations/2026_03_06_100000_add_resignation_form.php

@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        $tenants = DB::table('tenants')->whereNull('deleted_at')->pluck('id');
+
+        foreach ($tenants as $tenantId) {
+            $exists = DB::table('approval_forms')
+                ->where('tenant_id', $tenantId)
+                ->where('code', 'resignation')
+                ->exists();
+
+            if (! $exists) {
+                DB::table('approval_forms')->insert([
+                    'tenant_id' => $tenantId,
+                    'name' => '사직서',
+                    'code' => 'resignation',
+                    'category' => 'certificate',
+                    'template' => '[]',
+                    'body_template' => '',
+                    'is_active' => true,
+                    'created_at' => now(),
+                    'updated_at' => now(),
+                ]);
+            }
+        }
+    }
+
+    public function down(): void
+    {
+        DB::table('approval_forms')->where('code', 'resignation')->delete();
+    }
+};