feat: unify group policy allowlists

src/discord/monitor.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, it } from "vitest";
 import {
   allowListMatches,
   type DiscordGuildEntryResolved,
+  isDiscordGroupAllowedByPolicy,
   normalizeDiscordAllowList,
   normalizeDiscordSlug,
   resolveDiscordChannelConfig,
@@ -132,6 +133,58 @@ describe("discord guild/channel resolution", () => {
   });
 });
 
+describe("discord groupPolicy gating", () => {
+  it("allows when policy is open", () => {
+    expect(
+      isDiscordGroupAllowedByPolicy({
+        groupPolicy: "open",
+        channelAllowlistConfigured: false,
+        channelAllowed: false,
+      }),
+    ).toBe(true);
+  });
+
+  it("blocks when policy is disabled", () => {
+    expect(
+      isDiscordGroupAllowedByPolicy({
+        groupPolicy: "disabled",
+        channelAllowlistConfigured: true,
+        channelAllowed: true,
+      }),
+    ).toBe(false);
+  });
+
+  it("blocks allowlist when no channel allowlist configured", () => {
+    expect(
+      isDiscordGroupAllowedByPolicy({
+        groupPolicy: "allowlist",
+        channelAllowlistConfigured: false,
+        channelAllowed: true,
+      }),
+    ).toBe(false);
+  });
+
+  it("allows allowlist when channel is allowed", () => {
+    expect(
+      isDiscordGroupAllowedByPolicy({
+        groupPolicy: "allowlist",
+        channelAllowlistConfigured: true,
+        channelAllowed: true,
+      }),
+    ).toBe(true);
+  });
+
+  it("blocks allowlist when channel is not allowed", () => {
+    expect(
+      isDiscordGroupAllowedByPolicy({
+        groupPolicy: "allowlist",
+        channelAllowlistConfigured: true,
+        channelAllowed: false,
+      }),
+    ).toBe(false);
+  });
+});
+
 describe("discord group DM gating", () => {
   it("allows all when no allowlist", () => {
     expect(