feat(order): 수인약품 선별 주문 및 rx-usage 주문 전송 개선

- order_api.py: 수인 주문 시 submit_order_selective() 사용 (기존 품목 보존)
- admin_rx_usage.html: cart_only=false로 변경 (장바구니+주문확정)
- 버튼 텍스트 변경: 장바구니 담기 → 주문 전송

backend/templates/admin_rx_usage.html

@@ -528,6 +528,25 @@
             color: var(--text-muted);
             margin-top: 4px;
         }
+        .cart-item-actions {
+            display: flex;
+            gap: 6px;
+            align-items: center;
+        }
+        .cart-item-order {
+            background: rgba(16, 185, 129, 0.2);
+            border: none;
+            color: var(--accent-emerald);
+            padding: 4px 8px;
+            border-radius: 6px;
+            cursor: pointer;
+            font-size: 11px;
+            font-weight: 600;
+            white-space: nowrap;
+        }
+        .cart-item-order:hover {
+            background: rgba(16, 185, 129, 0.4);
+        }
         .cart-item-remove {
             background: rgba(244, 63, 94, 0.2);
             border: none;
@@ -1049,7 +1068,10 @@
                         <div class="cart-item-name">${escapeHtml(item.product_name)}</div>
                         <div class="cart-item-qty">${item.supplier || '-'} · ${item.qty}개</div>
                     </div>
-                    <button class="cart-item-remove" onclick="removeFromCart('${item.drug_code}')">✕</button>
+                    <div class="cart-item-actions">
+                        <button class="cart-item-order" onclick="orderSingleItem('${item.drug_code}')">📤주문</button>
+                        <button class="cart-item-remove" onclick="removeFromCart('${item.drug_code}')">✕</button>
+                    </div>
                 </div>
             `).join('');
         }
@@ -1131,28 +1153,256 @@
         }
     }
     
+    // 다중 도매상 선택을 위한 전역 변수
+    let pendingWholesalerItems = {};
+    let pendingOtherItems = [];
+    
     function openWholesalerSelectModal(itemsByWholesaler, otherItems) {
-        let msg = `장바구니에 여러 도매상 품목이 있습니다.\n\n`;
+        pendingWholesalerItems = itemsByWholesaler;
+        pendingOtherItems = otherItems;
+        
+        const modal = document.getElementById('multiWholesalerModal');
+        const body = document.getElementById('multiWholesalerBody');
         
         const wsIds = Object.keys(itemsByWholesaler);
+        
+        let html = `
+            <div class="multi-ws-summary">
+                <p style="margin-bottom:16px;color:var(--text-secondary);">
+                    장바구니에 <b>${wsIds.length}개 도매상</b>의 품목이 있습니다.
+                </p>
+        `;
+        
+        // 각 도매상별 품목 표시
         wsIds.forEach(wsId => {
             const ws = WHOLESALERS[wsId];
-            msg += `${ws.icon} ${ws.name}: ${itemsByWholesaler[wsId].length}개\n`;
+            const items = itemsByWholesaler[wsId];
+            html += `
+                <div class="multi-ws-card ${wsId}">
+                    <div class="multi-ws-header">
+                        <span class="multi-ws-icon">${ws.icon}</span>
+                        <span class="multi-ws-name">${ws.name}</span>
+                        <span class="multi-ws-count">${items.length}개 품목</span>
+                        <label class="multi-ws-checkbox">
+                            <input type="checkbox" id="ws_check_${wsId}" checked>
+                            <span>포함</span>
+                        </label>
+                    </div>
+                    <div class="multi-ws-items">
+                        ${items.slice(0, 3).map(item => `
+                            <div class="multi-ws-item">· ${item.product_name} (${item.qty}개)</div>
+                        `).join('')}
+                        ${items.length > 3 ? `<div class="multi-ws-item more">... 외 ${items.length - 3}개</div>` : ''}
+                    </div>
+                </div>
+            `;
         });
         
         if (otherItems.length > 0) {
-            msg += `📋 기타: ${otherItems.length}개\n`;
+            html += `
+                <div class="multi-ws-card other">
+                    <div class="multi-ws-header">
+                        <span class="multi-ws-icon">📋</span>
+                        <span class="multi-ws-name">기타 (API 미지원)</span>
+                        <span class="multi-ws-count">${otherItems.length}개 품목</span>
+                    </div>
+                    <div class="multi-ws-items">
+                        <div class="multi-ws-item" style="color:var(--text-muted);">클립보드 복사로 처리됩니다</div>
+                    </div>
+                </div>
+            `;
         }
         
-        msg += `\n어느 도매상부터 주문하시겠습니까?`;
-        msg += `\n\n[확인] = ${WHOLESALERS[wsIds[0]].name} 먼저`;
-        msg += `\n[취소] = ${WHOLESALERS[wsIds[1]].name} 먼저`;
+        html += `</div>`;
         
-        if (confirm(msg)) {
-            openOrderConfirmModal(wsIds[0], itemsByWholesaler[wsIds[0]]);
-        } else {
-            openOrderConfirmModal(wsIds[1], itemsByWholesaler[wsIds[1]]);
+        body.innerHTML = html;
+        modal.classList.add('show');
+    }
+    
+    function closeMultiWholesalerModal() {
+        document.getElementById('multiWholesalerModal').classList.remove('show');
+    }
+    
+    // 선택된 도매상 전체 일괄 처리
+    async function executeAllWholesalers(dryRun = false) {
+        const wsIds = Object.keys(pendingWholesalerItems);
+        
+        // 체크된 도매상만 필터
+        const selectedWsIds = wsIds.filter(wsId => {
+            const checkbox = document.getElementById(`ws_check_${wsId}`);
+            return checkbox && checkbox.checked;
+        });
+        
+        if (selectedWsIds.length === 0) {
+            showToast('선택된 도매상이 없습니다', 'error');
+            return;
         }
+        
+        // 버튼 비활성화
+        const btnTest = document.getElementById('btnMultiTest');
+        const btnReal = document.getElementById('btnMultiReal');
+        btnTest.disabled = true;
+        btnReal.disabled = true;
+        btnReal.textContent = '처리 중...';
+        
+        const allResults = [];
+        let totalSuccess = 0;
+        let totalFailed = 0;
+        
+        // 각 도매상 순차 처리
+        for (const wsId of selectedWsIds) {
+            const ws = WHOLESALERS[wsId];
+            const items = pendingWholesalerItems[wsId];
+            
+            showToast(`${ws.icon} ${ws.name} 처리 중... (${selectedWsIds.indexOf(wsId) + 1}/${selectedWsIds.length})`, 'info');
+            
+            try {
+                const payload = {
+                    wholesaler_id: wsId,
+                    items: items.map(item => ({
+                        drug_code: item.drug_code,
+                        kd_code: item.geoyoung_code || item.sooin_code || item.drug_code,
+                        internal_code: item.internal_code,
+                        product_name: item.product_name,
+                        manufacturer: item.supplier,
+                        specification: item.specification || '',
+                        order_qty: item.qty,
+                        usage_qty: item.usage_qty || 0,
+                        current_stock: item.current_stock || 0
+                    })),
+                    reference_period: `${document.getElementById('startDate').value}~${document.getElementById('endDate').value}`,
+                    dry_run: dryRun,
+                    cart_only: false  // 장바구니 + 주문 확정까지
+                };
+                
+                const response = await fetch('/api/order/quick-submit', {
+                    method: 'POST',
+                    headers: {'Content-Type': 'application/json'},
+                    body: JSON.stringify(payload),
+                    signal: AbortSignal.timeout(180000)  // 주문 확정까지 3분
+                });
+                
+                const result = await response.json();
+                result.wholesaler_id = wsId;
+                allResults.push(result);
+                
+                if (result.success) {
+                    totalSuccess += result.success_count || 0;
+                    totalFailed += result.failed_count || 0;
+                } else {
+                    totalFailed += items.length;
+                }
+                
+            } catch (err) {
+                allResults.push({
+                    wholesaler_id: wsId,
+                    success: false,
+                    error: err.message,
+                    success_count: 0,
+                    failed_count: items.length
+                });
+                totalFailed += items.length;
+            }
+        }
+        
+        // 기타 품목 클립보드 처리
+        if (pendingOtherItems.length > 0) {
+            submitOrderClipboardItems(pendingOtherItems);
+        }
+        
+        closeMultiWholesalerModal();
+        showMultiOrderResultModal(allResults, totalSuccess, totalFailed, dryRun);
+        
+        // 버튼 복원
+        btnTest.disabled = false;
+        btnReal.disabled = false;
+        btnReal.textContent = '📤 전체 주문 전송';
+    }
+    
+    // 특정 품목만 클립보드 복사
+    function submitOrderClipboardItems(items) {
+        let orderText = `📋 기타 품목 (API 미지원)\n━━━━━━━━━━━━━━━━━━\n`;
+        items.forEach((item, i) => {
+            orderText += `${i+1}. ${item.product_name} - ${item.qty}개\n`;
+        });
+        navigator.clipboard.writeText(orderText);
+    }
+    
+    // 다중 도매상 결과 모달
+    function showMultiOrderResultModal(results, totalSuccess, totalFailed, isDryRun) {
+        const modal = document.getElementById('orderResultModal');
+        const content = document.getElementById('orderResultContent');
+        const header = modal.querySelector('.order-modal-header h3');
+        const headerDiv = modal.querySelector('.order-modal-header');
+        
+        headerDiv.style.background = 'linear-gradient(135deg, #059669, #10b981)';
+        header.innerHTML = '📋 전체 주문 결과';
+        
+        const statusEmoji = totalFailed === 0 ? '✅' : totalSuccess === 0 ? '❌' : '⚠️';
+        const modeText = isDryRun ? '[테스트]' : '';
+        
+        let html = `
+            <div class="result-header ${totalFailed === 0 ? 'success' : 'partial'}">
+                <span class="result-emoji">${statusEmoji}</span>
+                <span class="result-title">${modeText} ${results.length}개 도매상 처리 완료</span>
+            </div>
+            <div class="result-summary">
+                <div class="result-stat">
+                    <span class="stat-label">도매상</span>
+                    <span class="stat-value">${results.length}개</span>
+                </div>
+                <div class="result-stat">
+                    <span class="stat-label">총 성공</span>
+                    <span class="stat-value success">${totalSuccess}개</span>
+                </div>
+                <div class="result-stat">
+                    <span class="stat-label">총 실패</span>
+                    <span class="stat-value ${totalFailed > 0 ? 'failed' : ''}">${totalFailed}개</span>
+                </div>
+            </div>
+        `;
+        
+        // 각 도매상별 결과
+        results.forEach(result => {
+            const wsId = result.wholesaler_id || result.wholesaler;
+            const ws = WHOLESALERS[wsId] || {icon: '📦', name: wsId, gradient: 'var(--bg-card)'};
+            const isSuccess = result.success && result.failed_count === 0;
+            
+            html += `
+                <div class="multi-result-card" style="margin-bottom:12px;">
+                    <div class="ws-header ${wsId}" style="margin-bottom:8px;">
+                        <span>${ws.icon}</span>
+                        <span class="ws-name">${ws.name}</span>
+                        <span style="margin-left:auto;font-size:12px;color:${isSuccess ? 'var(--accent-emerald)' : 'var(--accent-rose)'};">
+                            ${isSuccess ? '✓ 완료' : '⚠ 일부실패'}
+                        </span>
+                    </div>
+                    <div style="padding:0 12px 12px;">
+                        ${result.success ? `
+                            <div style="font-size:12px;color:var(--text-secondary);">
+                                성공: ${result.success_count}개 / 실패: ${result.failed_count}개
+                                ${result.order_no ? ` · 주문번호: ${result.order_no}` : ''}
+                            </div>
+                        ` : `
+                            <div style="font-size:12px;color:var(--accent-rose);">
+                                오류: ${result.error || '처리 실패'}
+                            </div>
+                        `}
+                    </div>
+                </div>
+            `;
+        });
+        
+        if (isDryRun) {
+            html += `<div class="result-note">💡 테스트 모드입니다. "전체 장바구니 담기" 버튼으로 실제 진행하세요.</div>`;
+        } else if (totalSuccess > 0) {
+            html += `<div class="result-note" style="background:rgba(16,185,129,0.1);color:#10b981;">
+                🛒 각 도매상 장바구니에 담겼습니다. <b>각 사이트에서 최종 확정</b>이 필요합니다.
+            </div>`;
+        }
+        
+        content.innerHTML = html;
+        modal.classList.add('show');
     }
     
     function openOrderConfirmModal(wholesalerId, items) {
@@ -1188,6 +1438,72 @@
         currentOrderWholesaler = null;
     }
     
+    // ──────────────── 개별 품목 실제 주문 ────────────────
+    async function orderSingleItem(drugCode) {
+        const item = cart.find(i => i.drug_code === drugCode);
+        if (!item) {
+            showToast('품목을 찾을 수 없습니다', 'error');
+            return;
+        }
+        
+        // 도매상 결정
+        let wholesaler = 'geoyoung';
+        for (const [wsId, ws] of Object.entries(WHOLESALERS)) {
+            if (ws.filterFn(item)) {
+                wholesaler = wsId;
+                break;
+            }
+        }
+        
+        const ws = WHOLESALERS[wholesaler];
+        
+        // 확인 다이얼로그
+        if (!confirm(`${ws.icon} ${ws.name}에 실제 주문하시겠습니까?\n\n품목: ${item.product_name}\n수량: ${item.qty}개\n\n⚠️ 이 작업은 실제 주문을 진행합니다!`)) {
+            return;
+        }
+        
+        showToast(`📤 ${item.product_name} 주문 중...`, 'info');
+        
+        try {
+            const payload = {
+                wholesaler_id: wholesaler,
+                items: [{
+                    drug_code: item.drug_code,
+                    kd_code: item.geoyoung_code || item.sooin_code || item.drug_code,
+                    internal_code: item.internal_code,
+                    product_name: item.product_name,
+                    manufacturer: item.supplier,
+                    specification: item.specification || '',
+                    order_qty: item.qty,
+                    usage_qty: item.usage_qty || 0,
+                    current_stock: item.current_stock || 0
+                }],
+                reference_period: `${document.getElementById('startDate').value}~${document.getElementById('endDate').value}`,
+                dry_run: false,
+                cart_only: false  // 실제 주문까지!
+            };
+            
+            const response = await fetch('/api/order/quick-submit', {
+                method: 'POST',
+                headers: {'Content-Type': 'application/json'},
+                body: JSON.stringify(payload)
+            });
+            
+            const result = await response.json();
+            
+            if (result.success && result.success_count > 0) {
+                showToast(`✅ ${item.product_name} 주문 완료!`, 'success');
+                // 장바구니에서 제거
+                removeFromCart(drugCode);
+            } else {
+                const errorMsg = result.results?.[0]?.result_message || result.error || '주문 실패';
+                showToast(`❌ ${errorMsg}`, 'error');
+            }
+        } catch (err) {
+            showToast(`❌ 오류: ${err.message}`, 'error');
+        }
+    }
+    
     async function executeOrder(dryRun = true) {
         const wholesaler = currentOrderWholesaler || 'geoyoung';
         
@@ -1206,7 +1522,7 @@
         btnTest.disabled = true;
         btnReal.disabled = true;
         btnTest.textContent = dryRun ? '처리 중...' : '🧪 테스트';
-        btnReal.textContent = !dryRun ? '처리 중...' : '🚀 실제 주문';
+        btnReal.textContent = !dryRun ? '처리 중...' : '🛒 장바구니 담기';
         
         try {
             const payload = {
@@ -1223,7 +1539,8 @@
                     current_stock: item.current_stock || 0
                 })),
                 reference_period: `${document.getElementById('startDate').value}~${document.getElementById('endDate').value}`,
-                dry_run: dryRun
+                dry_run: dryRun,
+                cart_only: false  // 장바구니 + 주문 확정까지
             };
             
             // 타임아웃 설정
@@ -1257,7 +1574,7 @@
             btnTest.disabled = false;
             btnReal.disabled = false;
             btnTest.textContent = '🧪 테스트';
-            btnReal.textContent = '🚀 실제 주문';
+            btnReal.textContent = '📤 주문 전송';
         }
     }
     
@@ -1276,12 +1593,23 @@
         headerDiv.style.background = ws.gradient;
         
         const isDryRun = result.dry_run;
+        const isCartOnly = result.cart_only;
         const statusEmoji = result.failed_count === 0 ? '✅' : result.success_count === 0 ? '❌' : '⚠️';
         
+        // 결과 타이틀
+        let resultTitle = '';
+        if (isDryRun) {
+            resultTitle = `[테스트] ${ws.name} 시뮬레이션 완료`;
+        } else if (isCartOnly) {
+            resultTitle = `${ws.name} 장바구니 담기 ${result.failed_count === 0 ? '완료' : '처리됨'}`;
+        } else {
+            resultTitle = `${ws.name} 주문 ${result.failed_count === 0 ? '완료' : '처리됨'}`;
+        }
+        
         let html = `
             <div class="result-header ${result.failed_count === 0 ? 'success' : 'partial'}">
                 <span class="result-emoji">${statusEmoji}</span>
-                <span class="result-title">${isDryRun ? '[테스트]' : ''} ${ws.name} 주문 ${result.failed_count === 0 ? '완료' : '처리됨'}</span>
+                <span class="result-title">${resultTitle}</span>
             </div>
             <div class="result-summary">
                 <div class="result-stat">
@@ -1322,12 +1650,21 @@
         html += '</tbody></table>';
         
         if (isDryRun && result.success_count > 0) {
-            html += `<div class="result-note">💡 테스트 모드입니다. 실제 주문은 "실제 주문" 버튼을 누르세요.</div>`;
+            html += `<div class="result-note">💡 테스트 모드입니다. "장바구니 담기" 버튼으로 실제 진행하세요.</div>`;
         }
         
-        // 수인/백제 실제 주문 시 안내
+        // 장바구니만 담은 경우 안내
+        if (!isDryRun && isCartOnly && result.success_count > 0) {
+            html += `<div class="result-note" style="background:rgba(6,182,212,0.1);color:#06b6d4;">
+                🛒 ${ws.name} 장바구니에 담겼습니다. <b>사이트에서 최종 확정</b>이 필요합니다.
+                ${wholesalerId === 'geoyoung' ? '<br>개별 품목은 📤주문 버튼으로 바로 주문할 수 있습니다.' : ''}
+            </div>`;
+        }
+        
+        // 도매상별 안내
         if (!isDryRun && result.note) {
             const noteColors = {
+                geoyoung: 'rgba(6,182,212,0.1);color:#06b6d4',
                 sooin: 'rgba(168,85,247,0.1);color:#a855f7',
                 baekje: 'rgba(245,158,11,0.1);color:#f59e0b'
             };
@@ -2113,6 +2450,79 @@
         font-size: 12px;
         color: var(--accent-cyan);
     }
+    
+    /* 다중 도매상 선택 모달 스타일 */
+    .multi-ws-summary {
+        padding: 0 4px;
+    }
+    .multi-ws-card {
+        background: var(--bg-card);
+        border-radius: 12px;
+        margin-bottom: 12px;
+        overflow: hidden;
+        border: 1px solid var(--border);
+    }
+    .multi-ws-card.geoyoung {
+        border-left: 3px solid var(--accent-cyan);
+    }
+    .multi-ws-card.sooin {
+        border-left: 3px solid var(--accent-purple);
+    }
+    .multi-ws-card.baekje {
+        border-left: 3px solid var(--accent-amber);
+    }
+    .multi-ws-card.other {
+        border-left: 3px solid var(--text-muted);
+        opacity: 0.7;
+    }
+    .multi-ws-header {
+        display: flex;
+        align-items: center;
+        gap: 10px;
+        padding: 14px 16px;
+        background: rgba(255,255,255,0.02);
+    }
+    .multi-ws-icon {
+        font-size: 20px;
+    }
+    .multi-ws-name {
+        font-weight: 600;
+        font-size: 14px;
+        flex: 1;
+    }
+    .multi-ws-count {
+        font-size: 12px;
+        color: var(--text-muted);
+        background: rgba(255,255,255,0.1);
+        padding: 3px 10px;
+        border-radius: 12px;
+    }
+    .multi-ws-checkbox {
+        display: flex;
+        align-items: center;
+        gap: 6px;
+        font-size: 12px;
+        color: var(--accent-emerald);
+        cursor: pointer;
+    }
+    .multi-ws-checkbox input {
+        width: 18px;
+        height: 18px;
+        accent-color: var(--accent-emerald);
+    }
+    .multi-ws-items {
+        padding: 10px 16px 14px;
+        border-top: 1px solid rgba(255,255,255,0.05);
+    }
+    .multi-ws-item {
+        font-size: 12px;
+        color: var(--text-secondary);
+        padding: 3px 0;
+    }
+    .multi-ws-item.more {
+        color: var(--text-muted);
+        font-style: italic;
+    }
     </style>
 
     <!-- 주문 확인 모달 -->
@@ -2124,7 +2534,10 @@
             </div>
             <div class="order-modal-body">
                 <p style="margin-bottom:12px;color:var(--text-secondary);">
-                    <span id="orderConfirmCount">0</span>개 품목을 <span id="orderConfirmWholesaler">지오영</span>에 주문합니다.
+                    <span id="orderConfirmCount">0</span>개 품목을 <span id="orderConfirmWholesaler">지오영</span> 장바구니에 담습니다.
+                </p>
+                <p style="margin-bottom:12px;font-size:12px;color:var(--accent-amber);">
+                    ⚠️ 장바구니 담기만 진행됩니다. 도매상 사이트에서 최종 확정이 필요합니다.
                 </p>
                 <table class="order-confirm-table">
                     <thead><tr><th>품목명</th><th>규격</th><th>수량</th></tr></thead>
@@ -2133,7 +2546,7 @@
             </div>
             <div class="order-modal-footer">
                 <button class="btn-order-test" id="btnOrderTest" onclick="executeOrder(true)">🧪 테스트</button>
-                <button class="btn-order-real" id="btnOrderReal" onclick="executeOrder(false)">🚀 실제 주문</button>
+                <button class="btn-order-real" id="btnOrderReal" onclick="executeOrder(false)">📤 주문 전송</button>
             </div>
         </div>
     </div>
@@ -2153,6 +2566,22 @@
         </div>
     </div>
 
+    <!-- 다중 도매상 선택 모달 -->
+    <div class="order-modal" id="multiWholesalerModal">
+        <div class="order-modal-content" style="max-width:550px;">
+            <div class="order-modal-header" style="background:linear-gradient(135deg, #059669, #10b981);">
+                <h3>🛒 전체 도매상 주문</h3>
+                <button class="order-close" onclick="closeMultiWholesalerModal()">✕</button>
+            </div>
+            <div class="order-modal-body" id="multiWholesalerBody">
+            </div>
+            <div class="order-modal-footer">
+                <button class="btn-order-test" id="btnMultiTest" onclick="executeAllWholesalers(true)">🧪 테스트</button>
+                <button class="btn-order-real" id="btnMultiReal" onclick="executeAllWholesalers(false)">📤 전체 주문 전송</button>
+            </div>
+        </div>
+    </div>
+
     <!-- 잔고 조회 모달 -->
     <div class="order-modal" id="balanceModal">
         <div class="order-modal-content" style="max-width:500px;">