feat: improve asset code generation and re-sequence assets by year

- Enhanced backend asset code generation logic to handle multiple tables
- Integrated asset code generation button in HWModal
- Included utility scripts for asset code migration and DB synchronization
- Resolved issues with missing purchase dates and duplicate asset codes

generate_codes.js

@@ -0,0 +1,94 @@
+import mysql from 'mysql2/promise';
+import XLSX from 'xlsx';
+import dotenv from 'dotenv';
+
+dotenv.config();
+
+const { DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT } = process.env;
+
+async function run() {
+  const pool = mysql.createPool({
+    host: DB_HOST,
+    user: DB_USER,
+    password: DB_PASS,
+    database: DB_NAME,
+    port: parseInt(DB_PORT || '3306')
+  });
+
+  console.log('📡 Fetching data from DB...');
+  const [pcs] = await pool.query('SELECT * FROM asset_pc');
+  const [servers] = await pool.query('SELECT * FROM asset_server');
+
+  const getPrefix = (type) => {
+    const t = type || '';
+    if (t.includes('서버 렉') || t.includes('워크스테이션')) return 'SVR';
+    if (t.includes('스토리지 렉')) return 'STO';
+    if (t.includes('공용PC') || t.includes('개인PC') || t.includes('서버PC') || t === 'PC') return 'PC';
+    return 'ETC';
+  };
+
+  const parseYYYYMM = (dateStr) => {
+    if (!dateStr) return '000000';
+    const clean = dateStr.replace(/[^0-9]/g, '');
+    if (clean.length >= 6) return clean.substring(0, 6);
+    return '000000';
+  };
+
+  const processList = (list) => {
+    // 1. Prepare data with sorting keys and groups
+    const mapped = list.map(item => {
+      const prefix = getPrefix(item.asset_type);
+      const yyyymm = parseYYYYMM(item.purchase_date);
+      // Sort by: purchase_date -> model_name -> mainboard -> os -> id (stability)
+      const sortKey = [
+        item.purchase_date || '9999-99-99',
+        item.model_name || '',
+        item.mainboard || '',
+        item.os || '',
+        item.id
+      ].join('|');
+
+      return { ...item, prefix, yyyymm, sortKey };
+    });
+
+    // 2. Sort the list
+    mapped.sort((a, b) => a.sortKey.localeCompare(b.sortKey));
+
+    // 3. Assign new codes
+    const counters = {};
+    return mapped.map(item => {
+      const groupKey = `${item.prefix}-${item.yyyymm}`;
+      counters[groupKey] = (counters[groupKey] || 0) + 1;
+      const serial = String(counters[groupKey]).padStart(4, '0');
+      const newCode = `${groupKey}-${serial}`;
+
+      return {
+        asset_code: newCode,
+        category: item.category,
+        asset_type: item.asset_type,
+        asset_purpose: item.asset_purpose || '',
+        memo: `[Legacy: ${item.asset_code || 'N/A'}] ${item.memo || ''}`.trim()
+      };
+    });
+  };
+
+  console.log('🔄 Processing codes...');
+  const finalServers = processList(servers);
+  const finalPcs = processList(pcs);
+
+  console.log('📊 Generating Excel...');
+  const wb = XLSX.utils.book_new();
+  const wsServers = XLSX.utils.json_to_sheet(finalServers);
+  const wsPcs = XLSX.utils.json_to_sheet(finalPcs);
+
+  XLSX.utils.book_append_sheet(wb, wsServers, 'asset_server');
+  XLSX.utils.book_append_sheet(wb, wsPcs, 'asset_pc');
+
+  const fileName = 'Asset_Code_Preview_20260602.xlsx';
+  XLSX.writeFile(wb, fileName);
+
+  console.log(`✅ Completed! File saved as: ${fileName}`);
+  await pool.end();
+}
+
+run().catch(console.error);