implement JWT tokens, regenerate docs and sqlc

api/queries/users.sql

@@ -8,17 +8,10 @@ UPDATE users SET user_name = $2, user_mail = $3, password = $4 WHERE id = $1;
 -- name: GetUsernameByID :one
 SELECT user_name FROM users WHERE id = $1;
 
--- name: CheckUserExistsByEmail :one
-SELECT id FROM users WHERE user_mail = $1;
-
 -- name: GetUserByID :one
 SELECT id, user_name, user_mail, created_at FROM users WHERE id = $1;
 
--- name: LoginUser :one
-SELECT id, user_name, user_mail FROM users WHERE user_mail = $1 AND password = $2;
-
--- name: UpdateUserSession :exec
-UPDATE users SET session_token = $2, session_expiry = $3 WHERE id = $1;
-
--- name: logoutUser :exec
--- This is a placeholder for logout functionality, which typically involves token invalidation or session management rather
+-- name: GetUserAuthByEmail :one
+SELECT id, user_name, user_mail, password
+FROM users
+WHERE user_mail = $1;