diff --git a/docs/development/CENTRAL.md b/docs/development/CENTRAL.md
index 160d40e..d1e443b 100644
--- a/docs/development/CENTRAL.md
+++ b/docs/development/CENTRAL.md
@@ -109,3 +109,4 @@
 - [Final Pool Layout Fix](./devlog/2025-12-18-043500_pool_sizing_final.md): Completed. Overhauled flex layout for Horizontal Pool to ensure card images scale 1:1 with panel height during resize, removing layout-blocking transitions.
 - [Pool Overflow Constraint](./devlog/2025-12-18-044500_pool_overflow_fix.md): Completed. Enforce flex shrinkage with `min-h-0` and `overflow-hidden` to strictly bind card height to resizeable panel.
 - [Resize Persistence](./devlog/2025-12-18-050000_resize_persistence.md): Completed. Implemented `localStorage` persistence for Sidebars and Pool Panels in both Draft and Deck Views.
+- [Resolve 413 Errors](./devlog/2025-12-18-112633_resolve_413_errors.md): Completed. Updated Helm ingress annotations and server limits to allow unlimited upload size.
diff --git a/docs/development/devlog/2025-12-18-112633_resolve_413_errors.md b/docs/development/devlog/2025-12-18-112633_resolve_413_errors.md
new file mode 100644
index 0000000..3170b69
--- /dev/null
+++ b/docs/development/devlog/2025-12-18-112633_resolve_413_errors.md
@@ -0,0 +1,16 @@
+# Resolve 413 Request Entity Too Large Errors
+
+## Objective
+Fix the "413 Request Entity Too Large" errors occurring during large uploads or requests after application deployment.
+
+## Changes
+1.  **Helm Chart Configuration (`helm/mtg-draft-maker/values.yaml`)**:
+    *   Added Nginx Ingress annotation `nginx.ingress.kubernetes.io/proxy-body-size: "0"` to disable the body size limit check at the ingress level.
+
+2.  **Server Configuration (`src/server/index.ts`)**:
+    *   Increased `maxHttpBufferSize` for Socket.IO to 1GB.
+    *   Increased `express.json` body parser limit to 1000MB to support large JSON payloads (e.g., extensive card lists).
+
+## Verification
+*   **Infrastructure**: Ensure the application is redeployed with the updated Helm chart for the ingress annotation to take effect.
+*   **Application**: Verify that large payloads can be sent to the server without triggering 413 errors.
diff --git a/helm/mtg-draft-maker/values.yaml b/helm/mtg-draft-maker/values.yaml
index 9c89386..b37f75d 100644
--- a/helm/mtg-draft-maker/values.yaml
+++ b/helm/mtg-draft-maker/values.yaml
@@ -43,7 +43,8 @@ service:
 ingress:
   enabled: false
   className: ""
-  annotations: {}
+  annotations:
+    nginx.ingress.kubernetes.io/proxy-body-size: "0"
     # kubernetes.io/ingress.class: nginx
     # kubernetes.io/tls-acme: "true"
   hosts:
diff --git a/src/client/dev-dist/sw.js b/src/client/dev-dist/sw.js
index 1d6341f..cada001 100644
--- a/src/client/dev-dist/sw.js
+++ b/src/client/dev-dist/sw.js
@@ -82,7 +82,7 @@ define(['./workbox-5a5d9309'], (function (workbox) { 'use strict';
     "revision": "3ca0b8505b4bec776b69afdba2768812"
   }, {
     "url": "index.html",
-    "revision": "0.7uegorivig4"
+    "revision": "0.afjkvsk6jt"
   }], {});
   workbox.cleanupOutdatedCaches();
   workbox.registerRoute(new workbox.NavigationRoute(workbox.createHandlerBoundToURL("index.html"), {
diff --git a/src/server/index.ts b/src/server/index.ts
index 1d59cda..7dbb89d 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -17,7 +17,7 @@ const __dirname = path.dirname(__filename);
 const app = express();
 const httpServer = createServer(app);
 const io = new Server(httpServer, {
-  maxHttpBufferSize: 300 * 1024 * 1024, // 300MB
+  maxHttpBufferSize: 1024 * 1024 * 1024, // 1GB (Unlimited for practical use)
   cors: {
     origin: "*", // Adjust for production,
     methods: ["GET", "POST"]
@@ -33,7 +33,7 @@ const packGeneratorService = new PackGeneratorService();
 const cardParserService = new CardParserService();
 const PORT = process.env.PORT || 3000;
 
-app.use(express.json({ limit: '50mb' })); // Increase limit for large card lists
+app.use(express.json({ limit: '1000mb' })); // Increase limit for large card lists
 
 // Serve static images (Nested)
 app.use('/cards', express.static(path.join(__dirname, 'public/cards')));