v1 review pass: fixed some minor bugs

src/contexts/WSContext.ts

@@ -1,12 +1,19 @@
 import { createContext } from "react";
 import type { Dump, OnlineUser } from "../model.ts";
 
+export interface VoteEvent {
+  dumpId: string;
+  voterId: string;
+  action: "cast" | "remove";
+}
+
 export interface WSContextValue {
   onlineUsers: OnlineUser[];
   voteCounts: Record<string, number>;
   myVotes: Set<string>;
   recentDumps: Dump[];
   deletedDumpIds: Set<string>;
+  lastVoteEvent: VoteEvent | null;
   castVote: (dumpId: string) => void;
   removeVote: (dumpId: string) => void;
 }
@@ -17,6 +24,7 @@ export const WSContext = createContext<WSContextValue>({
   myVotes: new Set(),
   recentDumps: [],
   deletedDumpIds: new Set(),
+  lastVoteEvent: null,
   castVote: () => {},
   removeVote: () => {},
 });