Add user pages

server/db/database.ts

@@ -2,7 +2,7 @@ import crypto from 'crypto'
 
 import { readFile, writeFile, access, constants } from 'fs/promises'
 
-import { MetadataProps as MetaProps, Problem, ProblemId, Solution, SolutionId, User, UserId } from '../../shared/model'
+import { MetadataProps as MetaProps, Problem, ProblemId, Solution, SolutionId, User } from '../../shared/model'
 
 function once<T extends (...args: any) => any>(fn: T, message: string): T {
     let flag = false

server/routes.ts

@@ -24,7 +24,6 @@ import {
 } from './db/database'
 
 import {
-    Id,
     isAdministrator,
     isStudent,
     Opaque,