docs: add railway deployment template to self hosting docs (#363)

* refactor: replace presigned URL uploads with backend upload endpoints

* feat: update avatar upload to use new endpoint

* refactor: use createS3Client in auth hooks

* feat: generate presigned URLs for avatars

* fix: show avatar image in user menu

* fix: hide tooltip if content is empty

* fix: support external avatar URLs in generateAvatarUrl

* fix: remove content type restriction on attachments

README.md

@@ -47,7 +47,17 @@ See our [roadmap](https://kan.bn/kan/roadmap) for upcoming features.
 
 ## Self Hosting 🐳
 
-The easiest way to self-host Kan is with Docker Compose. This will set up everything for you including your postgres database.
+### One-click Deployments
+
+The easiest way to deploy Kan is through Railway. We've partnered with Railway to maintain an official template that supports the development of the project.
+
+<a href="https://railway.com/deploy/kan?referralCode=bZPsr2&utm_medium=integration&utm_source=template&utm_campaign=generic">
+  <img src="https://railway.app/button.svg" alt="Deploy on Railway" height="40" />
+</a>
+
+### Docker Compose
+
+Alternatively, you can self-host Kan with Docker Compose. This will set up everything for you including your postgres database.
 
 1. Create a new file called `docker-compose.yml` and paste the following configuration:
 

packages/api/src/routers/board.ts

@@ -143,6 +143,13 @@ export const boardRouter = createTRPCRouter({
         },
       );
 
+      if (!result) {
+        throw new TRPCError({
+          message: `Board with public ID ${input.boardPublicId} not found`,
+          code: "NOT_FOUND",
+        });
+      }
+
       // Generate presigned URLs for workspace member avatars
       const workspaceWithAvatarUrls = result.workspace
         ? {