Revert "Feat/oauth rate limiting (#446)" (#461)

This reverts commit 7762fa2.

Author: Harxhit

apps/backend/src/app.ts

@@ -12,7 +12,6 @@ import Fastify, {type FastifyInstance} from 'fastify';
 
 import { prismaPlugin } from './plugins/prisma.js';
 import { redisPlugin } from './plugins/redis.js';
-import { oauthRateLimitPlugin } from './plugins/oauthRateLimit.js';
 import { analyticsRoutes } from './routes/analytics.js';
 import { authRoutes } from './routes/auth.js';
 import { cardRoutes } from './routes/cards.js';
@@ -88,9 +87,6 @@ export async function buildApp():Promise<FastifyInstance> {
   if (process.env.NODE_ENV !== 'test') {
   await app.register(redisPlugin);
 }
-
-  // ─── OAuth Rate Limiting ───
-  await app.register(oauthRateLimitPlugin);
   // ─── Auth Decorator ───
   app.decorate('authenticate', async function (request: any, reply: any) {
     try {

apps/backend/src/plugins/oauthRateLimit.ts

@@ -28,7 +28,7 @@ export async function authRoutes(app: FastifyInstance) {
   }
 
   // GitHub OAuth start
-  app.get('/github', { preHandler: [app.oauthStartRateLimit] }, async (request: FastifyRequest, reply: FastifyReply) => {
+  app.get('/github', async (request: FastifyRequest, reply: FastifyReply) => {
     const redirectUri = `${process.env.BACKEND_URL}/auth/github/callback`;
     const clientState = (request.query as any).state || '';
     const mobileRedirectUri = (request.query as any).mobile_redirect_uri || '';
@@ -55,7 +55,7 @@ export async function authRoutes(app: FastifyInstance) {
   });
 
   // GitHub OAuth callback
-  app.get('/github/callback', { preHandler: [app.oauthCallbackRateLimit] }, async (request: FastifyRequest<{ Querystring: OAuthCallbackQuery }>, reply: FastifyReply) => {
+  app.get('/github/callback', async (request: FastifyRequest<{ Querystring: OAuthCallbackQuery }>, reply: FastifyReply) => {
     const { code, state } = request.query;
     const storedState = request.cookies?.oauth_state;
     if (!state || !storedState || state !== storedState) {
@@ -151,7 +151,7 @@ export async function authRoutes(app: FastifyInstance) {
   });
 
   // Google OAuth start
-  app.get('/google', { preHandler: [app.oauthStartRateLimit] }, async (request: FastifyRequest, reply: FastifyReply) => {
+  app.get('/google', async (request: FastifyRequest, reply: FastifyReply) => {
     const redirectUri = `${process.env.BACKEND_URL}/auth/google/callback`;
     const clientState = (request.query as any).state || '';
     const mobileRedirectUri = (request.query as any).mobile_redirect_uri || '';
@@ -180,7 +180,7 @@ export async function authRoutes(app: FastifyInstance) {
   });
 
   // Google callback
-  app.get('/google/callback', { preHandler: [app.oauthCallbackRateLimit] }, async (request: FastifyRequest<{ Querystring: OAuthCallbackQuery }>, reply: FastifyReply) => {
+  app.get('/google/callback', async (request: FastifyRequest<{ Querystring: OAuthCallbackQuery }>, reply: FastifyReply) => {
     const { code, state } = request.query;
 
     const storedState = request.cookies?.oauth_state;