Remove redeemId field from redeem response

- Remove redeemId from successful redemption response
- Remove redeemId from error response
- Update swagger documentation to remove redeemId field
- Update README examples to remove redeemId field
- Clean up API response format for better simplicity

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "cashu-redeem-api",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cashu-redeem-api",
-      "version": "1.0.0",
+      "version": "1.1.0",
       "license": "MIT",
       "dependencies": {
         "@cashu/cashu-ts": "^1.1.0",
@@ -15,6 +15,7 @@
         "cors": "^2.8.5",
         "dotenv": "^16.4.5",
         "express": "^4.19.2",
+        "express-rate-limit": "^8.0.0",
         "swagger-jsdoc": "^6.2.8",
         "swagger-ui-express": "^5.0.1",
         "uuid": "^10.0.0"
@@ -26,6 +27,10 @@
       "engines": {
         "node": ">=18.0.0",
         "npm": ">=8.0.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/Michilis"
       }
     },
     "node_modules/@apidevtools/json-schema-ref-parser": {
@@ -1464,6 +1469,23 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/express-rate-limit": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.0.0.tgz",
+      "integrity": "sha512-FXEAp2ccTeN1ZSO+sPHRHWB0/CrTP5asFBjUaNeD9A0v3iPmgFbLu24vqPjiM9utszI58VGlMokjXQ0W9Dbmjw==",
+      "dependencies": {
+        "ip": "2.0.1"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/express-rate-limit"
+      },
+      "peerDependencies": {
+        "express": ">= 4.11"
+      }
+    },
     "node_modules/fast-deep-equal": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
@@ -1961,6 +1983,11 @@
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "license": "ISC"
     },
+    "node_modules/ip": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/ip/-/ip-2.0.1.tgz",
+      "integrity": "sha512-lJUL9imLTNi1ZfXT+DU6rBBdbiKGBuay9B6xGSPVjUeQwaH1RIGqef8RZkUtHioLmSNpPR5M4HVKJGm1j8FWVQ=="
+    },
     "node_modules/ipaddr.js": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",