chore: clean up type errors and warnings

src/server/api/routers/card.ts

@@ -195,7 +195,7 @@ export const cardRouter = createTRPCRouter({
         input.cardPublicId,
       );
 
-      if (!card || !card?.list?.id) return;
+      if (!card ?? !card?.list?.id) return;
 
       const deletedAt = new Date().toISOString();
 

src/server/api/routers/list.ts

@@ -105,5 +105,7 @@ export const listRouter = createTRPCRouter({
         { name: input.name },
         { listPublicId: input.listPublicId },
       );
+
+      return result;
     }),
 });

src/server/api/routers/workspace.ts

@@ -1,5 +1,4 @@
 import { z } from "zod";
-import { generateUID } from "~/utils/generateUID";
 
 import { createTRPCRouter, protectedProcedure } from "~/server/api/trpc";
 import * as workspaceRepo from "~/server/db/repository/workspace.repo";