feat: add channel match metadata logs

Co-authored-by: thewilloftheshadow <thewilloftheshadow@users.noreply.github.com>

src/slack/monitor/channel-config.test.ts

@@ -28,4 +28,18 @@ describe("resolveSlackChannelConfig", () => {
     });
     expect(res).toMatchObject({ requireMention: true });
   });
+
+  it("uses wildcard entries when no direct channel config exists", () => {
+    const res = resolveSlackChannelConfig({
+      channelId: "C1",
+      channels: { "*": { allow: true, requireMention: false } },
+      defaultRequireMention: true,
+    });
+    expect(res).toMatchObject({
+      allowed: true,
+      requireMention: false,
+      matchKey: "*",
+      matchSource: "wildcard",
+    });
+  });
 });