fix: require same-root feedback coalescing

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

server/src/services/recovery/feedback-delivery.test.ts

@@ -263,6 +263,13 @@ describe("feedback retry coalescing", () => {
       liveRootWakeupRequestId: "wake-root-2",
     })).toBe(false);
   });
+
+  it("keeps queued non-feedback work in a separate delivery lane", () => {
+    expect(canCoalesceFeedbackDeliveryRetry({
+      ...base,
+      liveRootWakeupRequestId: null,
+    })).toBe(false);
+  });
 });
 
 describe("stranded feedback delivery backstop", () => {

server/src/services/recovery/feedback-delivery.ts

@@ -106,10 +106,7 @@ export function canCoalesceFeedbackDeliveryRetry(input: {
 }) {
   return input.liveAgentId === input.sourceAgentId
     && input.liveStatus !== "running"
-    && (
-      input.liveRootWakeupRequestId === null
-      || input.liveRootWakeupRequestId === input.sourceRootWakeupRequestId
-    );
+    && input.liveRootWakeupRequestId === input.sourceRootWakeupRequestId;
 }
 
 export function hasCompleteFeedbackDispositionCoverage(input: {