feat(logging): add database logging support and refactor logging system

- Implement new database logging functionality with separate logs database
- Refactor PostLog function to store logs in database while maintaining console output
- Add new InitLogsDatabase function and related database operations
- Update main.go to support separate database paths for data and logs
- Add logging for user creation events

database.go

@@ -6,12 +6,18 @@ import (
 	"fmt"
 	"strconv"
 	"strings"
+	"super-frpc/postLog"
 	"time"
 
 	_ "modernc.org/sqlite"
 )
 
 var db *sql.DB
+var logsDB *sql.DB
+
+func GetLogsDatabase() *sql.DB {
+	return logsDB
+}
 
 type User struct {
 	UserID    int
@@ -35,15 +41,23 @@ type FrpcInstance struct {
 	CreatedBy   string
 }
 
-func InitDatabase(dbPath string) error {
-	InitUserDatabase(dbPath)
-	InitFrpcDatabase(dbPath)
+func InitDatabase(dbPath_data string, dbPath_log string) error {
+	InitUserDatabase(dbPath_data)
+	InitFrpcDatabase(dbPath_data)
+	postLog.InitLogsDatabase(dbPath_log)
 	return nil
 }
 
 func CloseDatabase() error {
 	if db != nil {
-		return db.Close()
+		if err := db.Close(); err != nil {
+			return err
+		}
+	}
+	if logsDB != nil {
+		if err := logsDB.Close(); err != nil {
+			return err
+		}
 	}
 	return nil
 }