feat(dbms): 支持MySQL数据库连接管理功能

- 添加MySQL数据库类型的连接支持，默认端口为3306，用户名为root
- 实现Oracle与MySQL连接类型的差异化表单验证逻辑
- 更新连接树组件以区分不同数据库类型的显示方式
- 集成备份恢复任务面板，支持双标签页切换功能
- 优化表格排序功能，增强连接列表的可操作性
- 调整任务面板布局，改进用户体验和界面交互
- 新增连接对话框中数据库类型的选择与初始化逻辑

frontend/src/views/system-ops/dbms/contracts/check-mysql-api-debug-contract.mjs

@@ -0,0 +1,55 @@
+import fs from 'node:fs'
+import path from 'node:path'
+
+const root = path.resolve(import.meta.dirname, '..')
+
+const files = {
+    page: path.join(root, 'index.vue'),
+    dialog: path.join(root, 'components/DbmsConnectionDialog.vue'),
+    taskPanel: path.join(root, 'components/DbmsTaskPanel.vue'),
+    payload: path.join(root, 'utils/taskPayload.ts'),
+    apiTypes: path.join(root, '../../../api/system/dbms/interface/index.ts')
+}
+
+const read = file => fs.readFileSync(file, 'utf8')
+
+const checks = [
+    ['connection list should not hardcode ORACLE dbType', !/dbType:\s*'ORACLE'/.test(read(files.page))],
+    ['mysql entry should not be blocked in connection type selection', !/if\s*\(dbType\s*===\s*'MYSQL'\)/.test(read(files.page))],
+    ['connection payload type should define databaseName', /databaseName\?:\s*string \| null/.test(read(files.apiTypes))],
+    ['connection form model should define databaseName', /databaseName:\s*string/.test(read(files.payload))],
+    ['payload builder should map MySQL databaseName', /databaseName:\s*dbType === 'MYSQL' \? form\.databaseName\.trim\(\) \|\| null : null/.test(read(files.payload))],
+    [
+        'backup file list should support MySQL JDBC_EXPORT strategy',
+        /backupStrategy:\s*backupStrategy \|\| undefined/.test(read(files.payload))
+    ],
+    [
+        'mysql backup payload should prefer databaseName as schemaName fallback',
+        /connection\.dbType === 'MYSQL'[\s\S]*connection\.databaseName[\s\S]*connection\.schemaName/.test(read(files.payload))
+    ],
+    [
+        'mysql task panel should lock backup strategy to JDBC_EXPORT',
+        /isMysqlConnection[\s\S]*backupForm\.backupStrategy = 'JDBC_EXPORT'/.test(read(files.taskPanel))
+    ],
+    [
+        'task panel should hide Data Pump Directory field',
+        !/label="Directory"[\s\S]*v-model="backupForm\.directoryName"/.test(read(files.taskPanel))
+    ],
+    [
+        'mysql task panel should label schema input as database name',
+        /:label="schemaFieldLabel"/.test(read(files.taskPanel))
+    ],
+    ['connection dialog should render databaseName field for MySQL', /v-if="selectedDbType === 'MYSQL'"/.test(read(files.dialog))]
+]
+
+const failed = checks.filter(([, passed]) => !passed)
+
+if (failed.length) {
+    console.error('dbms mysql api debug contract failed:')
+    for (const [message] of failed) {
+        console.error(`- ${message}`)
+    }
+    process.exit(1)
+}
+
+console.log('dbms mysql api debug contract passed')