simplify auth setup

apps/cli/template/with-auth/packages/server/src/lib/trpc.ts

@@ -0,0 +1,24 @@
+import { initTRPC, TRPCError } from "@trpc/server";
+import type { Context } from "./context";
+
+export const t = initTRPC.context<Context>().create();
+
+export const router = t.router;
+
+export const publicProcedure = t.procedure;
+
+export const protectedProcedure = t.procedure.use(({ ctx, next }) => {
+  if (!ctx.session) {
+    throw new TRPCError({
+      code: "UNAUTHORIZED",
+      message: "Authentication required",
+      cause: "No session",
+    });
+  }
+  return next({
+    ctx: {
+      ...ctx,
+      session: ctx.session,
+    },
+  });
+});