refactor(server): auth (#5895)

Remove `next-auth` and implement our own Authorization/Authentication system from scratch.

## Server

- [x] tokens
  - [x] function
  - [x] encryption

- [x] AuthController
  - [x] /api/auth/sign-in
  - [x] /api/auth/sign-out
  - [x] /api/auth/session
  - [x] /api/auth/session (WE SUPPORT MULTI-ACCOUNT!)

- [x] OAuthPlugin
  - [x] OAuthController
  - [x] /oauth/login
  - [x] /oauth/callback
  - [x] Providers
    - [x] Google
    - [x] GitHub

## Client

- [x] useSession
- [x] cloudSignIn
- [x] cloudSignOut

## NOTE:

Tests will be adding in the future

packages/backend/server/scripts/init-db.ts

@@ -1,37 +0,0 @@
-import userA from '@affine-test/fixtures/userA.json' assert { type: 'json' };
-import { hash } from '@node-rs/argon2';
-import { PrismaClient } from '@prisma/client';
-const prisma = new PrismaClient();
-
-async function main() {
-  await prisma.user.create({
-    data: {
-      ...userA,
-      password: await hash(userA.password),
-      features: {
-        create: {
-          reason: 'created by api sign up',
-          activated: true,
-          feature: {
-            connect: {
-              feature_version: {
-                feature: 'free_plan_v1',
-                version: 1,
-              },
-            },
-          },
-        },
-      },
-    },
-  });
-}
-
-main()
-  .then(async () => {
-    await prisma.$disconnect();
-  })
-  .catch(async e => {
-    console.error(e);
-    await prisma.$disconnect();
-    process.exit(1);
-  });