feat: support login

- migrate old API into typescript but not finished (only webLogin works now)
- seperate the logger of backend due to the shitty behavior of Flask (change logging level)

frontend/src/api/common.ts

@@ -0,0 +1,43 @@
+import { apiWrapper, boolApiWrapper } from './index'
+
+// /**
+//  * Login with salt
+//  * @param username - Username
+//  * @param password - Password
+//  * @returns Token if login successful, undefined otherwise
+//  */
+// export async function login(username: string, password: string): Promise<string | undefined> {
+//   const salt: string | undefined = await apiWrapper('/api/common/salt', { username });
+//   if (typeof salt === 'undefined') return undefined;
+
+//   const computedPassword = computePasswordWithSalt(password, salt);
+//   return apiWrapper('/api/common/login', { username, password: computedPassword });
+// }
+
+/**
+ * Web login
+ * @param username - Username
+ * @param password - Password
+ * @returns Token if login successful, undefined otherwise
+ */
+export async function webLogin(username: string, password: string): Promise<string | undefined> {
+  return apiWrapper('/api/common/webLogin', { username, password });
+}
+
+/**
+ * Logout
+ * @param token - Authentication token
+ * @returns true if logout successful, false otherwise if logout failed
+ */
+export async function logout(token: string): Promise<boolean> {
+  return boolApiWrapper('/api/common/logout', { token });
+}
+
+/**
+ * Validate token
+ * @param token - Authentication token
+ * @returns true if token is valid, false otherwise
+ */
+export async function tokenValid(token: string): Promise<boolean> {
+  return boolApiWrapper('/api/common/tokenValid', { token });
+}