Revert "feat: add file routing option"

This reverts commit 750783e860.

playground/server/trpc/trpc.ts

@@ -1,17 +1,43 @@
-/* eslint-disable @typescript-eslint/no-unused-vars */
-import type { inferAsyncReturnType } from '@trpc/server'
-import type { H3Event } from 'h3'
+import { initTRPC } from '@trpc/server'
+import superjson from 'superjson'
+import { ZodError } from 'zod'
+import type { Context } from './context'
 
-export type Context = inferAsyncReturnType<typeof createContext>
+const t = initTRPC.context<Context>().create({
+  transformer: superjson,
+  errorFormatter ({ shape, error }) {
+    return {
+      ...shape,
+      data: {
+        ...shape.data,
+        zodError:
+          error.code === 'BAD_REQUEST' &&
+          error.cause instanceof ZodError
+            ? error.cause!.flatten()
+            : null
+      }
+    }
+  }
+})
 
 /**
- * Creates context for an incoming request
- * @link https://trpc.io/docs/context
+ * Create a router
+ * @see https://trpc.io/docs/v10/router
  */
-export function createContext (
-  opts: H3Event
-) {
-  // for API-response caching see https://trpc.io/docs/caching
+export const router = t.router
 
-  return {}
-}
+/**
+  * Create an unprotected procedure
+  * @see https://trpc.io/docs/v10/procedures
+  **/
+export const publicProcedure = t.procedure
+
+/**
+  * @see https://trpc.io/docs/v10/middlewares
+  */
+export const middleware = t.middleware
+
+/**
+  * @see https://trpc.io/docs/v10/merging-routers
+  */
+export const mergeRouters = t.mergeRouters