feat: 판매관리 시스템 Phase 1 및 마일리지 시스템 구현

- 판매 관리 기능 추가
  - compounds 테이블에 판매 관련 컬럼 추가 (payment_method, discount_rate, delivery_method 등)
  - 판매 상태 관리 (조제완료→결제대기→결제완료→배송대기→배송완료)
  - 판매 처리 모달 UI 구현
  - 9가지 상태별 뱃지 표시

- 마일리지 시스템 구축
  - patients 테이블에 마일리지 컬럼 추가 (balance, earned, used)
  - mileage_transactions 테이블 생성 (거래 이력 관리)
  - 마일리지 사용/적립 기능 구현

- 복합 결제 기능
  - 할인율(%) / 할인액(원) 직접 입력 선택 가능
  - 마일리지 + 현금 + 카드 + 계좌이체 복합 결제
  - 결제 금액 자동 검증
  - 결제 방법 자동 분류 (복합결제 지원)

- API 엔드포인트 추가
  - POST /api/compounds/<id>/status (상태 업데이트)
  - PUT /api/compounds/<id>/price (가격 조정)
  - GET /api/sales/statistics (판매 통계)

- 데이터베이스 설정 통합
  - config.py 생성하여 DB 경로 중앙화

TODO: 처방별 기본가격 정책 시스템 (price_policies 테이블 활용)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

static/app.js

@@ -1267,14 +1267,32 @@ $(document).ready(function() {
                     let statusBadge = '';
                     switch(compound.status) {
                         case 'PREPARED':
-                            statusBadge = '<span class="badge bg-success">조제완료</span>';
+                            statusBadge = '<span class="badge bg-primary">조제완료</span>';
                             break;
-                        case 'DISPENSED':
-                            statusBadge = '<span class="badge bg-primary">출고완료</span>';
+                        case 'PENDING_PAYMENT':
+                            statusBadge = '<span class="badge bg-warning">결제대기</span>';
+                            break;
+                        case 'PAID':
+                            statusBadge = '<span class="badge bg-success">결제완료</span>';
+                            break;
+                        case 'PENDING_DELIVERY':
+                            statusBadge = '<span class="badge bg-info">배송대기</span>';
+                            break;
+                        case 'DELIVERED':
+                            statusBadge = '<span class="badge bg-secondary">배송완료</span>';
+                            break;
+                        case 'COMPLETED':
+                            statusBadge = '<span class="badge bg-dark">판매완료</span>';
+                            break;
+                        case 'OTC_CONVERTED':
+                            statusBadge = '<span class="badge bg-purple">OTC전환</span>';
                             break;
                         case 'CANCELLED':
                             statusBadge = '<span class="badge bg-danger">취소</span>';
                             break;
+                        case 'REFUNDED':
+                            statusBadge = '<span class="badge bg-danger">환불</span>';
+                            break;
                         default:
                             statusBadge = '<span class="badge bg-secondary">대기</span>';
                     }
@@ -1297,6 +1315,20 @@ $(document).ready(function() {
                                 <button class="btn btn-sm btn-outline-info view-compound-detail" data-id="${compound.compound_id}">
                                     <i class="bi bi-eye"></i> 상세
                                 </button>
+                                ${compound.status === 'PREPARED' ? `
+                                    <button class="btn btn-sm btn-outline-success process-sale" data-id="${compound.compound_id}"
+                                            data-formula="${compound.formula_name || '직접조제'}"
+                                            data-patient="${compound.patient_name || '직접조제'}"
+                                            data-cost="${compound.cost_total || 0}"
+                                            data-price="${compound.sell_price_total || 0}">
+                                        <i class="bi bi-cash-coin"></i> 판매
+                                    </button>
+                                ` : ''}
+                                ${compound.status === 'PAID' ? `
+                                    <button class="btn btn-sm btn-outline-primary process-delivery" data-id="${compound.compound_id}">
+                                        <i class="bi bi-truck"></i> 배송
+                                    </button>
+                                ` : ''}
                             </td>
                         </tr>
                     `);
@@ -1312,6 +1344,23 @@ $(document).ready(function() {
                     const compoundId = $(this).data('id');
                     viewCompoundDetail(compoundId);
                 });
+
+                // 판매 처리 버튼 이벤트
+                $('.process-sale').on('click', function() {
+                    const compoundId = $(this).data('id');
+                    const formulaName = $(this).data('formula');
+                    const patientName = $(this).data('patient');
+                    const costTotal = $(this).data('cost');
+                    const priceTotal = $(this).data('price');
+
+                    openSalesModal(compoundId, formulaName, patientName, costTotal, priceTotal);
+                });
+
+                // 배송 처리 버튼 이벤트
+                $('.process-delivery').on('click', function() {
+                    const compoundId = $(this).data('id');
+                    processDelivery(compoundId);
+                });
             } else {
                 tbody.html('<tr><td colspan="13" class="text-center text-muted">조제 내역이 없습니다.</td></tr>');
                 $('#todayCompoundCount').text(0);
@@ -3439,4 +3488,267 @@ $(document).ready(function() {
         alert('약재 정보 수정 기능은 준비 중입니다.');
         // TODO: 정보 수정 폼 구현
     }
+
+    // ==================== 판매 관리 기능 ====================
+
+    // 판매 모달 열기
+    function openSalesModal(compoundId, formulaName, patientName, costTotal, priceTotal) {
+        $('#salesCompoundId').val(compoundId);
+        $('#salesFormulaName').val(formulaName);
+        $('#salesPatientName').val(patientName);
+        $('#salesCostTotal').val(costTotal);
+
+        // 환자 마일리지 조회
+        loadPatientMileage(patientName);
+
+        // 기본 가격 계산 (원가 + 조제료)
+        const dispensingFee = parseFloat($('#salesDispensingFee').val()) || 20000;
+        const basePrice = costTotal + dispensingFee;
+        $('#salesBasePrice').val(basePrice);
+
+        // 판매가가 없으면 기본가격으로 설정
+        if (!priceTotal || priceTotal === 0) {
+            priceTotal = basePrice;
+        }
+
+        // 초기화
+        $('#salesDiscountValue').val(0);
+        $('#salesPriceAfterDiscount').val(priceTotal);
+        $('#salesMileageUse').val(0);
+        $('#salesPaymentCash').val(0);
+        $('#salesPaymentCard').val(0);
+        $('#salesPaymentTransfer').val(0);
+        updatePaymentSummary();
+
+        // 현재 시간 설정
+        const now = new Date();
+        const localDateTime = new Date(now.getTime() - now.getTimezoneOffset() * 60000).toISOString().slice(0, 16);
+        $('#salesPaymentDate').val(localDateTime);
+
+        // 내일 날짜 설정 (배송예정일)
+        const tomorrow = new Date(now);
+        tomorrow.setDate(tomorrow.getDate() + 1);
+        $('#salesDeliveryDate').val(tomorrow.toISOString().slice(0, 10));
+
+        $('#salesModal').modal('show');
+
+        // 가격 자동 계산 이벤트
+        calculateSalesPrice();
+    }
+
+    // 환자 마일리지 조회
+    function loadPatientMileage(patientName) {
+        if (patientName && patientName !== '직접조제') {
+            $.get('/api/patients/search', { name: patientName }, function(response) {
+                if (response.success && response.data.length > 0) {
+                    const patient = response.data[0];
+                    const mileage = patient.mileage_balance || 0;
+                    $('#patientMileageBalance').text(mileage.toLocaleString());
+                    $('#salesMileageUse').attr('max', mileage);
+                } else {
+                    $('#patientMileageBalance').text('0');
+                    $('#salesMileageUse').attr('max', 0);
+                }
+            });
+        } else {
+            $('#patientMileageBalance').text('0');
+            $('#salesMileageUse').attr('max', 0);
+        }
+    }
+
+    // 가격 자동 계산
+    function calculateSalesPrice() {
+        const costTotal = parseFloat($('#salesCostTotal').val()) || 0;
+        const dispensingFee = parseFloat($('#salesDispensingFee').val()) || 0;
+        const basePrice = costTotal + dispensingFee;
+        $('#salesBasePrice').val(basePrice);
+
+        const discountType = $('input[name="discountType"]:checked').val();
+        const discountValue = parseFloat($('#salesDiscountValue').val()) || 0;
+
+        let discountAmount = 0;
+        if (discountType === 'rate') {
+            discountAmount = basePrice * (discountValue / 100);
+        } else {
+            discountAmount = discountValue;
+        }
+
+        const priceAfterDiscount = Math.max(0, basePrice - discountAmount);
+        $('#salesPriceAfterDiscount').val(Math.round(priceAfterDiscount));
+
+        updatePaymentSummary();
+    }
+
+    // 결제 요약 업데이트
+    function updatePaymentSummary() {
+        const priceAfterDiscount = parseFloat($('#salesPriceAfterDiscount').val()) || 0;
+        const mileageUse = parseFloat($('#salesMileageUse').val()) || 0;
+        const cashPayment = parseFloat($('#salesPaymentCash').val()) || 0;
+        const cardPayment = parseFloat($('#salesPaymentCard').val()) || 0;
+        const transferPayment = parseFloat($('#salesPaymentTransfer').val()) || 0;
+
+        const totalPayment = mileageUse + cashPayment + cardPayment + transferPayment;
+        const needToPay = Math.max(0, priceAfterDiscount - totalPayment);
+
+        $('#salesNeedToPay').text(needToPay.toLocaleString());
+        $('#salesTotalPayment').text(totalPayment.toLocaleString());
+
+        // 결제 방법 자동 설정
+        if (totalPayment > 0) {
+            let methodCount = 0;
+            if (mileageUse > 0) methodCount++;
+            if (cashPayment > 0) methodCount++;
+            if (cardPayment > 0) methodCount++;
+            if (transferPayment > 0) methodCount++;
+
+            if (methodCount > 1) {
+                $('#salesPaymentMethod').val('COMPLEX');
+            } else if (cashPayment > 0) {
+                $('#salesPaymentMethod').val('CASH');
+            } else if (cardPayment > 0) {
+                $('#salesPaymentMethod').val('CARD');
+            } else if (transferPayment > 0) {
+                $('#salesPaymentMethod').val('TRANSFER');
+            }
+        }
+    }
+
+    // 할인 방식 변경 이벤트
+    $('input[name="discountType"]').on('change', function() {
+        const discountType = $(this).val();
+        if (discountType === 'rate') {
+            $('#discountUnit').text('%');
+            $('#salesDiscountValue').attr('max', 100);
+        } else {
+            $('#discountUnit').text('원');
+            $('#salesDiscountValue').removeAttr('max');
+        }
+        calculateSalesPrice();
+    });
+
+    // 가격 계산 이벤트 핸들러
+    $('#salesDispensingFee, #salesDiscountValue').on('input', calculateSalesPrice);
+    $('#salesMileageUse, #salesPaymentCash, #salesPaymentCard, #salesPaymentTransfer').on('input', updatePaymentSummary);
+
+    // 마일리지 전액 사용 버튼
+    $('#applyMaxMileage').on('click', function() {
+        const maxMileage = parseFloat($('#salesMileageUse').attr('max')) || 0;
+        const priceAfterDiscount = parseFloat($('#salesPriceAfterDiscount').val()) || 0;
+        const useAmount = Math.min(maxMileage, priceAfterDiscount);
+        $('#salesMileageUse').val(useAmount);
+        updatePaymentSummary();
+    });
+
+    // 판매 저장
+    $('#saveSalesBtn').on('click', function() {
+        const compoundId = $('#salesCompoundId').val();
+        const priceAfterDiscount = parseFloat($('#salesPriceAfterDiscount').val()) || 0;
+        const discountType = $('input[name="discountType"]:checked').val();
+        const discountValue = parseFloat($('#salesDiscountValue').val()) || 0;
+        const discountReason = $('#salesDiscountReason').val();
+
+        // 복합 결제 정보
+        const mileageUse = parseFloat($('#salesMileageUse').val()) || 0;
+        const cashPayment = parseFloat($('#salesPaymentCash').val()) || 0;
+        const cardPayment = parseFloat($('#salesPaymentCard').val()) || 0;
+        const transferPayment = parseFloat($('#salesPaymentTransfer').val()) || 0;
+
+        const totalPayment = mileageUse + cashPayment + cardPayment + transferPayment;
+
+        // 결제 금액 검증
+        if (Math.abs(totalPayment - priceAfterDiscount) > 1) {
+            alert(`결제 금액이 일치하지 않습니다.\n필요금액: ${priceAfterDiscount.toLocaleString()}원\n결제금액: ${totalPayment.toLocaleString()}원`);
+            return;
+        }
+
+        const paymentMethod = $('#salesPaymentMethod').val();
+        const paymentDate = $('#salesPaymentDate').val();
+        const deliveryMethod = $('#salesDeliveryMethod').val();
+        const deliveryDate = $('#salesDeliveryDate').val();
+
+        if (!paymentMethod) {
+            alert('결제방법을 선택해주세요.');
+            return;
+        }
+
+        // 할인액 계산
+        const basePrice = parseFloat($('#salesBasePrice').val()) || 0;
+        let discountAmount = 0;
+        if (discountType === 'rate') {
+            discountAmount = basePrice * (discountValue / 100);
+        } else {
+            discountAmount = discountValue;
+        }
+
+        // 1. 가격 및 결제 정보 업데이트
+        $.ajax({
+            url: `/api/compounds/${compoundId}/price`,
+            type: 'PUT',
+            contentType: 'application/json',
+            data: JSON.stringify({
+                sell_price_total: priceAfterDiscount,
+                discount_rate: discountType === 'rate' ? discountValue : 0,
+                discount_amount: Math.round(discountAmount),
+                discount_reason: discountReason,
+                mileage_used: mileageUse,
+                payment_cash: cashPayment,
+                payment_card: cardPayment,
+                payment_transfer: transferPayment
+            }),
+            success: function() {
+                // 2. 상태를 PAID로 변경
+                $.ajax({
+                    url: `/api/compounds/${compoundId}/status`,
+                    type: 'POST',
+                    contentType: 'application/json',
+                    data: JSON.stringify({
+                        status: 'PAID',
+                        payment_method: paymentMethod,
+                        payment_date: paymentDate,
+                        actual_payment_amount: priceAfterDiscount,
+                        delivery_method: deliveryMethod,
+                        delivery_date: deliveryDate,
+                        mileage_used: mileageUse,
+                        changed_by: 'user'
+                    }),
+                    success: function() {
+                        alert('판매 처리가 완료되었습니다.');
+                        $('#salesModal').modal('hide');
+                        loadCompounds(); // 목록 새로고침
+                    },
+                    error: function(xhr) {
+                        alert('상태 업데이트 실패: ' + (xhr.responseJSON?.error || '알 수 없는 오류'));
+                    }
+                });
+            },
+            error: function(xhr) {
+                alert('가격 업데이트 실패: ' + (xhr.responseJSON?.error || '알 수 없는 오류'));
+            }
+        });
+    });
+
+    // 배송 처리
+    function processDelivery(compoundId) {
+        if (!confirm('배송 처리를 하시겠습니까?')) {
+            return;
+        }
+
+        $.ajax({
+            url: `/api/compounds/${compoundId}/status`,
+            type: 'POST',
+            contentType: 'application/json',
+            data: JSON.stringify({
+                status: 'DELIVERED',
+                delivery_date: new Date().toISOString(),
+                changed_by: 'user'
+            }),
+            success: function() {
+                alert('배송 처리가 완료되었습니다.');
+                loadCompounds(); // 목록 새로고침
+            },
+            error: function(xhr) {
+                alert('배송 처리 실패: ' + (xhr.responseJSON?.error || '알 수 없는 오류'));
+            }
+        });
+    }
 });