fix: [payroll] 전표 생성 시 기타공제 누락 수정 및 에러 모달 추가

- 기타공제(deductions JSON) 항목을 대변 207 예수금에 반영
- 차대 불균형 시 상세 분개 내역을 에러 모달로 표시
- toast 대신 복사 가능한 모달로 에러 메시지 표시

app/Http/Controllers/Api/Admin/HR/PayrollController.php

@@ -738,27 +738,44 @@ public function generateJournalEntry(Request $request): JsonResponse
         }
 
         // 해당월 급여 합산
-        $sums = Payroll::forTenant($tenantId)
+        $payrolls = Payroll::forTenant($tenantId)
             ->forPeriod($year, $month)
-            ->selectRaw('
-                SUM(gross_salary) as total_gross,
-                SUM(pension) as total_pension,
-                SUM(health_insurance) as total_health,
-                SUM(long_term_care) as total_ltc,
-                SUM(employment_insurance) as total_emp,
-                SUM(income_tax) as total_income_tax,
-                SUM(resident_tax) as total_resident_tax,
-                SUM(net_salary) as total_net
-            ')
-            ->first();
+            ->get();
 
-        if (! $sums || (int) $sums->total_gross === 0) {
+        if ($payrolls->isEmpty()) {
             return response()->json([
                 'success' => false,
                 'message' => '해당 월 급여 데이터가 없습니다.',
             ], 422);
         }
 
+        // 기타공제(deductions JSON) 합산 포함
+        $extraDeductionsTotal = 0;
+        foreach ($payrolls as $p) {
+            foreach ($p->deductions ?? [] as $d) {
+                $extraDeductionsTotal += (int) ($d['amount'] ?? 0);
+            }
+        }
+
+        $sums = (object) [
+            'total_gross' => $payrolls->sum('gross_salary'),
+            'total_pension' => $payrolls->sum('pension'),
+            'total_health' => $payrolls->sum('health_insurance'),
+            'total_ltc' => $payrolls->sum('long_term_care'),
+            'total_emp' => $payrolls->sum('employment_insurance'),
+            'total_income_tax' => $payrolls->sum('income_tax'),
+            'total_resident_tax' => $payrolls->sum('resident_tax'),
+            'total_net' => $payrolls->sum('net_salary'),
+            'total_extra_deductions' => $extraDeductionsTotal,
+        ];
+
+        if ((int) $sums->total_gross === 0) {
+            return response()->json([
+                'success' => false,
+                'message' => '해당 월 급여 데이터의 총지급액이 0입니다.',
+            ], 422);
+        }
+
         // 거래처 조회
         $partnerNames = ['임직원', '건강보험연금', '건강보험건강', '건강보험고용', '강서세무서', '강서구청'];
         $partners = TradingPartner::forTenant($tenantId)
@@ -906,7 +923,23 @@ public function generateJournalEntry(Request $request): JsonResponse
             ];
         }
 
-        // 8. 대변: 205 미지급비용 / 임직원 — 급여
+        // 8. 대변: 207 예수금 / 임직원 — 기타공제
+        $extraDeductions = (int) $sums->total_extra_deductions;
+        if ($extraDeductions > 0) {
+            $lines[] = [
+                'dc_type' => 'credit',
+                'account_code' => '207',
+                'account_name' => $accountCodes['207'],
+                'trading_partner_id' => $partners['임직원'],
+                'trading_partner_name' => '임직원',
+                'debit_amount' => 0,
+                'credit_amount' => $extraDeductions,
+                'description' => '기타공제',
+                'line_no' => $lineNo++,
+            ];
+        }
+
+        // 9. 대변: 205 미지급비용 / 임직원 — 급여
         $netSalary = (int) $sums->total_net;
         if ($netSalary > 0) {
             $lines[] = [
@@ -927,9 +960,18 @@ public function generateJournalEntry(Request $request): JsonResponse
         $totalCredit = collect($lines)->sum('credit_amount');
 
         if ($totalDebit !== $totalCredit || $totalDebit === 0) {
+            $detail = collect($lines)->map(fn ($l) => sprintf(
+                '[%s] %s %s: %s',
+                $l['dc_type'],
+                $l['account_code'],
+                $l['description'],
+                number_format($l['dc_type'] === 'debit' ? $l['debit_amount'] : $l['credit_amount'])
+            ))->implode("\n");
+
             return response()->json([
                 'success' => false,
-                'message' => "차변({$totalDebit})과 대변({$totalCredit})이 일치하지 않습니다.",
+                'message' => '차변('.number_format($totalDebit).')과 대변('.number_format($totalCredit).")이 일치하지 않습니다.\n차이: ".number_format(abs($totalDebit - $totalCredit)),
+                'detail' => "급여 {$payrolls->count()}건 합산\n\n{$detail}",
             ], 422);
         }
 

resources/views/hr/payrolls/index.blade.php

@@ -841,6 +841,31 @@ class="px-5 py-2 text-sm text-white bg-violet-600 hover:bg-violet-700 rounded-lg
         </div>
     </div>
 </div>
+{{-- 에러 상세 모달 --}}
+<div id="errorDetailModal" class="fixed inset-0 z-50 hidden">
+    <div class="fixed inset-0 bg-black/50" onclick="closeErrorModal()"></div>
+    <div class="fixed inset-0 flex items-center justify-center p-4">
+        <div class="bg-white rounded-xl shadow-2xl w-full max-w-lg max-h-[80vh] flex flex-col" onclick="event.stopPropagation()">
+            <div class="flex items-center justify-between px-6 py-4 border-b border-gray-200">
+                <h3 class="text-lg font-bold text-red-600">오류 발생</h3>
+                <button onclick="closeErrorModal()" class="text-gray-400 hover:text-gray-600">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/></svg>
+                </button>
+            </div>
+            <div class="px-6 py-4 overflow-y-auto flex-1">
+                <p id="errorDetailMessage" class="text-sm text-gray-800 font-medium whitespace-pre-line mb-3"></p>
+                <pre id="errorDetailContent" class="text-xs text-gray-600 bg-gray-50 border border-gray-200 rounded-lg p-3 whitespace-pre-wrap hidden"></pre>
+            </div>
+            <div class="flex items-center justify-end gap-2 px-6 py-3 border-t border-gray-200 bg-gray-50 rounded-b-xl">
+                <button onclick="copyErrorDetail()" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50">
+                    <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
+                    복사
+                </button>
+                <button onclick="closeErrorModal()" class="px-3 py-1.5 text-sm font-medium text-white bg-gray-600 rounded-lg hover:bg-gray-700">닫기</button>
+            </div>
+        </div>
+    </div>
+</div>
 @endsection
 
 @push('scripts')
@@ -941,12 +966,12 @@ function generateJournalEntry() {
             if (result.success) {
                 showToast(result.message, 'success');
             } else {
-                showToast(result.message, 'error');
+                showErrorModal(result.message, result.detail || null);
             }
         })
         .catch(err => {
             console.error(err);
-            showToast('전표 생성 중 오류가 발생했습니다.', 'error');
+            showErrorModal('전표 생성 중 오류가 발생했습니다.', err.message);
         });
     }
 
@@ -1780,6 +1805,32 @@ function printPayslipPreview() {
         win.print();
     }
 
+    // ===== 에러 모달 =====
+    function showErrorModal(message, detail) {
+        document.getElementById('errorDetailMessage').textContent = message;
+        const contentEl = document.getElementById('errorDetailContent');
+        if (detail) {
+            contentEl.textContent = detail;
+            contentEl.classList.remove('hidden');
+        } else {
+            contentEl.classList.add('hidden');
+        }
+        document.getElementById('errorDetailModal').classList.remove('hidden');
+    }
+
+    function closeErrorModal() {
+        document.getElementById('errorDetailModal').classList.add('hidden');
+    }
+
+    function copyErrorDetail() {
+        const message = document.getElementById('errorDetailMessage').textContent;
+        const detail = document.getElementById('errorDetailContent').textContent;
+        const text = detail ? message + '\n\n' + detail : message;
+        navigator.clipboard.writeText(text).then(() => {
+            showToast('클립보드에 복사되었습니다.', 'success');
+        });
+    }
+
     // ===== 토스트 메시지 =====
     function showToast(message, type) {
         if (typeof window.showToastMessage === 'function') {