Batch inline comment wake payloads

Co-Authored-By: Paperclip <noreply@paperclip.ing>

server/src/__tests__/heartbeat-workspace-session.test.ts

@@ -7,7 +7,9 @@ import {
   buildRealizedExecutionWorkspaceFromPersisted,
   buildExplicitResumeSessionOverride,
   deriveTaskKeyWithHeartbeatFallback,
+  extractWakeCommentIds,
   formatRuntimeWorkspaceWarningLog,
+  mergeCoalescedContextSnapshot,
   prioritizeProjectWorkspaceCandidatesForRun,
   parseSessionCompactionPolicy,
   resolveRuntimeSessionParamsForWorkspace,
@@ -357,6 +359,32 @@ describe("deriveTaskKeyWithHeartbeatFallback", () => {
   });
 });
 
+describe("comment wake batching", () => {
+  it("preserves ordered wake comment ids when coalescing queued follow-up wakes", () => {
+    const merged = mergeCoalescedContextSnapshot(
+      {
+        issueId: "issue-1",
+        wakeReason: "issue_commented",
+        wakeCommentId: "comment-1",
+        wakeCommentIds: ["comment-1"],
+        paperclipWake: {
+          latestCommentId: "comment-1",
+        },
+      },
+      {
+        issueId: "issue-1",
+        wakeReason: "issue_commented",
+        wakeCommentId: "comment-2",
+      },
+    );
+
+    expect(extractWakeCommentIds(merged)).toEqual(["comment-1", "comment-2"]);
+    expect(merged.commentId).toBe("comment-2");
+    expect(merged.wakeCommentId).toBe("comment-2");
+    expect(merged.paperclipWake).toBeUndefined();
+  });
+});
+
 describe("buildExplicitResumeSessionOverride", () => {
   it("reuses saved task session params when they belong to the selected failed run", () => {
     const result = buildExplicitResumeSessionOverride({