refactor: rename asset_network to asset_remote

- DB 테이블명 변경 마이그레이션 스크립트 추가 (migrate_v5_rename_remote.js)

- Backend (server.js): 쿼리 및 매핑 로직을 asset_remote 및 remotes 속성으로 업데이트

- Frontend (HWModal.ts): 폼 필드와 데이터 바인딩을 remotes로 일괄 수정

- 유틸리티 스크립트의 레퍼런스 일괄 업데이트

migrate_v4_network.js

@@ -0,0 +1,73 @@
+import mysql from 'mysql2/promise';
+import dotenv from 'dotenv';
+
+dotenv.config();
+
+const pool = mysql.createPool({
+  host: process.env.DB_HOST,
+  user: process.env.DB_USER,
+  password: process.env.DB_PASS,
+  database: process.env.DB_NAME,
+  port: parseInt(process.env.DB_PORT || '3306'),
+});
+
+async function migrate() {
+    const conn = await pool.getConnection();
+    try {
+        console.log('1. Creating asset_remote_v4 table...');
+        await conn.query(`
+            CREATE TABLE IF NOT EXISTS asset_remote_v4 (
+                id INT AUTO_INCREMENT PRIMARY KEY,
+                asset_id VARCHAR(50) NOT NULL,
+                net_type VARCHAR(20) NOT NULL, /* 'IP' or 'REMOTE' */
+                net_name VARCHAR(100), /* e.g., '기본망', 'AnyDesk' */
+                net_value1 VARCHAR(100), /* IP or ID */
+                net_value2 VARCHAR(100), /* MAC or PW */
+                is_active TINYINT(1) DEFAULT 1,
+                deactivated_at DATETIME NULL,
+                created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                FOREIGN KEY (asset_id) REFERENCES asset_core(id) ON DELETE CASCADE
+            ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        `);
+
+        console.log('2. Migrating data from asset_remote...');
+        const [oldRows] = await conn.query('SELECT * FROM asset_remote WHERE is_active = 1');
+        
+        let ipCount = 0;
+        let remoteCount = 0;
+
+        for (const row of oldRows) {
+            // Migrating IP/MAC
+            if (row.ip_address || row.mac_address) {
+                await conn.query(
+                    'INSERT INTO asset_remote_v4 (asset_id, net_type, net_name, net_value1, net_value2, created_at) VALUES (?, ?, ?, ?, ?, ?)',
+                    [row.asset_id, 'IP', '기본망', row.ip_address, row.mac_address, row.created_at]
+                );
+                ipCount++;
+            }
+            // Migrating Remote
+            if (row.remote_tool || row.remote_id || row.remote_pw) {
+                await conn.query(
+                    'INSERT INTO asset_remote_v4 (asset_id, net_type, net_name, net_value1, net_value2, created_at) VALUES (?, ?, ?, ?, ?, ?)',
+                    [row.asset_id, 'REMOTE', row.remote_tool, row.remote_id, row.remote_pw, row.created_at]
+                );
+                remoteCount++;
+            }
+        }
+        
+        console.log(`Migrated ${ipCount} IP records and ${remoteCount} Remote records.`);
+
+        console.log('3. Renaming tables...');
+        await conn.query('DROP TABLE IF EXISTS asset_remote_legacy');
+        await conn.query('RENAME TABLE asset_remote TO asset_remote_legacy, asset_remote_v4 TO asset_remote;');
+
+        console.log('✅ Migration V4 (Remote) Complete.');
+    } catch (e) {
+        console.error('Migration failed:', e);
+    } finally {
+        conn.release();
+        pool.end();
+    }
+}
+
+migrate();