refactor(msteams): split monitor handler and poll store

src/msteams/polls-store-memory.ts

@@ -0,0 +1,36 @@
+import {
+  type MSTeamsPoll,
+  type MSTeamsPollStore,
+  normalizeMSTeamsPollSelections,
+} from "./polls.js";
+
+export function createMSTeamsPollStoreMemory(
+  initial: MSTeamsPoll[] = [],
+): MSTeamsPollStore {
+  const polls = new Map<string, MSTeamsPoll>();
+  for (const poll of initial) {
+    polls.set(poll.id, { ...poll });
+  }
+
+  const createPoll = async (poll: MSTeamsPoll) => {
+    polls.set(poll.id, { ...poll });
+  };
+
+  const getPoll = async (pollId: string) => polls.get(pollId) ?? null;
+
+  const recordVote = async (params: {
+    pollId: string;
+    voterId: string;
+    selections: string[];
+  }) => {
+    const poll = polls.get(params.pollId);
+    if (!poll) return null;
+    const normalized = normalizeMSTeamsPollSelections(poll, params.selections);
+    poll.votes[params.voterId] = normalized;
+    poll.updatedAt = new Date().toISOString();
+    polls.set(poll.id, poll);
+    return poll;
+  };
+
+  return { createPoll, getPoll, recordVote };
+}