add global config support

db/db.go

@@ -44,6 +44,15 @@ type UsersTable struct {
 	UpdatedAt int64  `json:"updated_at"`
 }
 
+// GlobalConfig 全局CaddyFile配置专用table
+type GlobalConfig struct {
+	Filename        string `json:"filename"`
+	Params          []byte `json:"params"`
+	TmplContent     []byte `json:"tmpl_content"`
+	RenderedContent []byte `json:"rendered_content"`
+	UpdatedAt       int64  `json:"updated_at"`
+}
+
 // ConfigDB
 type ConfigDB struct {
 	DB *sql.DB
@@ -124,7 +133,6 @@ func (cdb *ConfigDB) createTables() error {
 		return fmt.Errorf("failed to create 'rendered_configs' table: %w", err)
 	}
 
-	//
 	// 4. 创建 users 表
 	_, err = tx.Exec(`
 	CREATE TABLE IF NOT EXISTS users (
@@ -137,6 +145,19 @@ func (cdb *ConfigDB) createTables() error {
 		return fmt.Errorf("failed to create 'users' table: %w", err)
 	}
 
+	// 5. 创建 global_configs 表
+	_, err = tx.Exec(`
+	CREATE TABLE IF NOT EXISTS global_configs (
+		filename        TEXT PRIMARY KEY,
+		params          BLOB NOT NULL DEFAULT '',
+		tmpl_content    BLOB NOT NULL DEFAULT '',
+		rendered_content BLOB NOT NULL DEFAULT '',
+		updated_at      INTEGER NOT NULL DEFAULT (strftime('%s', 'now'))
+	);`)
+	if err != nil {
+		return fmt.Errorf("failed to create 'global_configs' table: %w", err)
+	}
+
 	// 提交事务
 	if err := tx.Commit(); err != nil {
 		return fmt.Errorf("failed to commit transaction for table creation: %w", err)