refactor(src): split oversized modules

src/slack/monitor/policy.ts

@@ -0,0 +1,11 @@
+export function isSlackRoomAllowedByPolicy(params: {
+  groupPolicy: "open" | "disabled" | "allowlist";
+  channelAllowlistConfigured: boolean;
+  channelAllowed: boolean;
+}): boolean {
+  const { groupPolicy, channelAllowlistConfigured, channelAllowed } = params;
+  if (groupPolicy === "disabled") return false;
+  if (groupPolicy === "open") return true;
+  if (!channelAllowlistConfigured) return false;
+  return channelAllowed;
+}