refactor: Remove KV dependancy, migrate to upstash

Author: YOGESH-08

.env.example

@@ -23,10 +23,10 @@ GOOGLE_CLOUD_BUCKET=""                      # Your Google Cloud Storage Bucket n
 GOOGLE_APPLICATION_CREDENTIALS_JSON=""      # The content of the JSON file you download when creating a service account key
 
 # Vercel KV
-KV_URL=""                           # The URL of your Vercel KV instance
-KV_REST_API_URL=""                  # The REST API URL of your Vercel KV instance
-KV_REST_API_TOKEN=""                # The REST API token for your Vercel KV instance
-KV_REST_API_READ_ONLY_TOKEN=""      # The read-only REST API token for your Vercel KV instance
+# KV_URL=""                           # The URL of your Vercel KV instance
+# KV_REST_API_URL=""                  # The REST API URL of your Vercel KV instance
+# KV_REST_API_TOKEN=""                # The REST API token for your Vercel KV instance
+# KV_REST_API_READ_ONLY_TOKEN=""      # The read-only REST API token for your Vercel KV instance
 
 # Upstash_Redis
 UPSTASH_REDIS_REST_URL=""           # REST URL of your Upstash Redis database

package.json

@@ -31,7 +31,6 @@
     "@ungap/with-resolvers": "^0.1.0",
     "@upstash/ratelimit": "^2.0.5",
     "@upstash/redis": "^1.33.0",
-    "@vercel/kv": "^3.0.0",
     "axios": "^1.8.4",
     "canvas": "^3.2.0",
     "class-variance-authority": "^0.7.1",

pnpm-lock.yaml

@@ -1,20 +1,20 @@
 import { Ratelimit } from "@upstash/ratelimit";
-import { kv } from "@vercel/kv";
+import { redis } from "./redis";
 
 // Rate limiter for AI Upload (5 requests per 15 minutes)
 export const aiUploadRatelimit = new Ratelimit({
-  redis: kv,
+  redis: redis,
   limiter: Ratelimit.slidingWindow(5, "900 s"),
 });
 
 // Rate limiter for Paper Requests (5 requests per 15 minutes)
 export const paperRequestRatelimit = new Ratelimit({
-  redis: kv,
+  redis: redis,
   limiter: Ratelimit.slidingWindow(5, "900 s"),
 });
 
 // Rate limiter for Subscriptions (3 requests per hour)
 export const subscribeRatelimit = new Ratelimit({
-  redis: kv,
+  redis: redis,
   limiter: Ratelimit.slidingWindow(3, "1 h"),
 });