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",
+    });
+  });
 });

src/slack/monitor/context.ts

@@ -310,6 +310,9 @@ export function createSlackMonitorContext(params: {
         channels: params.channelsConfig,
         defaultRequireMention,
       });
+      const channelMatchMeta = `matchKey=${channelConfig?.matchKey ?? "none"} matchSource=${
+        channelConfig?.matchSource ?? "none"
+      }`;
       const channelAllowed = channelConfig?.allowed !== false;
       const channelAllowlistConfigured =
         Boolean(params.channelsConfig) && Object.keys(params.channelsConfig ?? {}).length > 0;
@@ -320,9 +323,16 @@ export function createSlackMonitorContext(params: {
           channelAllowed,
         })
       ) {
+        logVerbose(
+          `slack: drop channel ${p.channelId} (groupPolicy=${params.groupPolicy}, ${channelMatchMeta})`,
+        );
         return false;
       }
-      if (!channelAllowed) return false;
+      if (!channelAllowed) {
+        logVerbose(`slack: drop channel ${p.channelId} (${channelMatchMeta})`);
+        return false;
+      }
+      logVerbose(`slack: allow channel ${p.channelId} (${channelMatchMeta})`);
     }
 
     return true;