Refactor and remove sqlite and replace with MySQL

internal/handlers/session/account.go

@@ -0,0 +1,23 @@
+package handlers
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gorilla/sessions"
+)
+
+var (
+	SessionStore *sessions.CookieStore
+	Name         string
+)
+
+func GetSession(w http.ResponseWriter, r *http.Request) (*sessions.Session, error) {
+	if SessionStore == nil {
+		return nil, fmt.Errorf("session store not initialized")
+	}
+	if Name == "" {
+		return nil, fmt.Errorf("session name not configured")
+	}
+	return SessionStore.Get(r, Name)
+}