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/src/plugins/oauth/register.ts

@@ -0,0 +1,58 @@
+import { Injectable, Logger, OnModuleInit } from '@nestjs/common';
+
+import { Config } from '../../fundamentals';
+import { OAuthProvider } from './providers/def';
+import { OAuthProviderName } from './types';
+
+const PROVIDERS: Map<OAuthProviderName, OAuthProvider> = new Map();
+
+export function registerOAuthProvider(
+  name: OAuthProviderName,
+  provider: OAuthProvider
+) {
+  PROVIDERS.set(name, provider);
+}
+
+@Injectable()
+export class OAuthProviderFactory {
+  get providers() {
+    return PROVIDERS.keys();
+  }
+
+  get(name: OAuthProviderName): OAuthProvider | undefined {
+    return PROVIDERS.get(name);
+  }
+}
+
+export abstract class AutoRegisteredOAuthProvider
+  extends OAuthProvider
+  implements OnModuleInit
+{
+  protected abstract AFFiNEConfig: Config;
+
+  get optionalConfig() {
+    return this.AFFiNEConfig.plugins.oauth?.providers?.[this.provider];
+  }
+
+  get config() {
+    const config = this.optionalConfig;
+
+    if (!config) {
+      throw new Error(
+        `OAuthProvider Config should not be used before registered`
+      );
+    }
+
+    return config;
+  }
+
+  onModuleInit() {
+    const config = this.optionalConfig;
+    if (config && config.clientId && config.clientSecret) {
+      registerOAuthProvider(this.provider, this);
+      new Logger(`OAuthProvider:${this.provider}`).log(
+        'OAuth provider registered.'
+      );
+    }
+  }
+}