refactor(src): split oversized modules

src/slack/monitor/auth.ts

@@ -0,0 +1,33 @@
+import { readChannelAllowFromStore } from "../../pairing/pairing-store.js";
+
+import {
+  allowListMatches,
+  normalizeAllowList,
+  normalizeAllowListLower,
+} from "./allow-list.js";
+import type { SlackMonitorContext } from "./context.js";
+
+export async function resolveSlackEffectiveAllowFrom(ctx: SlackMonitorContext) {
+  const storeAllowFrom = await readChannelAllowFromStore("slack").catch(
+    () => [],
+  );
+  const allowFrom = normalizeAllowList([...ctx.allowFrom, ...storeAllowFrom]);
+  const allowFromLower = normalizeAllowListLower(allowFrom);
+  return { allowFrom, allowFromLower };
+}
+
+export function isSlackSenderAllowListed(params: {
+  allowListLower: string[];
+  senderId: string;
+  senderName?: string;
+}) {
+  const { allowListLower, senderId, senderName } = params;
+  return (
+    allowListLower.length === 0 ||
+    allowListMatches({
+      allowList: allowListLower,
+      id: senderId,
+      name: senderName,
+    })
+  );
+}