feat: 대체조제 표시 기능 추가

- PS_Type=9 (원본 처방) 숨김
- PS_Type=4 (대체조제) '대)' 배지 표시
- 원처방 펼쳐보기 (details/summary)
- 순서: 4(대체) → 9(원본) 패턴 매칭

관련: 3월5일 개선지시서.md

backend/templates/pmr.html

@@ -942,6 +942,47 @@
         tr.row-removed { background: #fef2f2 !important; opacity: 0.7; }
         tr.row-changed { background: #fffbeb !important; }
         
+        /* 대체조제 표시 */
+        .subst-badge {
+            display: inline-block;
+            background: linear-gradient(135deg, #f59e0b, #d97706);
+            color: white;
+            padding: 1px 5px;
+            border-radius: 4px;
+            font-size: 0.65rem;
+            font-weight: 700;
+            margin-right: 4px;
+            vertical-align: middle;
+        }
+        .original-rx {
+            margin-top: 4px;
+            font-size: 0.75rem;
+        }
+        .original-rx summary {
+            cursor: pointer;
+            color: #6b7280;
+            user-select: none;
+        }
+        .original-rx summary:hover {
+            color: #4b5563;
+        }
+        .original-drug-info {
+            margin-top: 4px;
+            padding: 6px 10px;
+            background: #fef3c7;
+            border-radius: 4px;
+            border-left: 3px solid #f59e0b;
+        }
+        .orig-name {
+            display: block;
+            font-weight: 500;
+            color: #92400e;
+        }
+        .orig-code {
+            font-size: 0.7rem;
+            color: #b45309;
+        }
+        
         .change-arrow {
             color: #94a3b8;
             margin: 0 4px;
@@ -1362,12 +1403,23 @@
                                 </thead>
                                 <tbody>
                                     ${data.medications.map(m => `
-                                        <tr data-add-info="${escapeHtml(m.add_info || '')}">
+                                        <tr data-add-info="${escapeHtml(m.add_info || '')}" ${m.is_substituted ? 'class="substituted-row"' : ''}>
                                             <td><input type="checkbox" class="med-check" data-code="${m.medication_code}" ${m.is_auto_print ? 'checked' : ''}></td>
                                             <td>
-                                                <div class="med-name">${m.med_name || m.medication_code}</div>
+                                                <div class="med-name">
+                                                    ${m.is_substituted ? '<span class="subst-badge" title="대체조제">대)</span> ' : ''}${m.med_name || m.medication_code}
+                                                </div>
                                                 <div class="med-code">${m.medication_code}</div>
                                                 ${m.add_info ? `<div style="font-size:0.75rem;color:#6b7280;">${escapeHtml(m.add_info)}</div>` : ''}
+                                                ${m.is_substituted && m.original_drug ? `
+                                                    <details class="original-rx">
+                                                        <summary>원처방 보기</summary>
+                                                        <div class="original-drug-info">
+                                                            <span class="orig-name">${escapeHtml(m.original_drug.drug_name)}</span>
+                                                            <span class="orig-code">${m.original_drug.drug_code}</span>
+                                                        </div>
+                                                    </details>
+                                                ` : ''}
                                             </td>
                                             <td>${m.formulation ? `<span class="med-form">${m.formulation}</span>` : '-'}</td>
                                             <td><span class="med-dosage">${m.dosage || '-'}</span></td>