feat: terminal reattach, explorer tab memory, worktree terminals

packages/server/src/client/daemon-client-terminal-stream-manager.test.ts

@@ -28,7 +28,8 @@ describe("TerminalStreamManager", () => {
     manager.receiveChunk({
       chunk: createChunk({ streamId: 7, offset: 4, data: "hello" }),
     });
-    expect(sendAck).not.toHaveBeenCalled();
+    expect(sendAck).toHaveBeenCalledTimes(1);
+    expect(sendAck).toHaveBeenCalledWith({ streamId: 7, offset: 9 });
 
     manager.subscribe({
       streamId: 7,
@@ -77,6 +78,9 @@ describe("TerminalStreamManager", () => {
     manager.receiveChunk({
       chunk: createChunk({ streamId: 5, offset: 2, data: "C" }),
     });
+    expect(sendAck).toHaveBeenNthCalledWith(1, { streamId: 5, offset: 1 });
+    expect(sendAck).toHaveBeenNthCalledWith(2, { streamId: 5, offset: 2 });
+    expect(sendAck).toHaveBeenNthCalledWith(3, { streamId: 5, offset: 3 });
 
     const seen: string[] = [];
     manager.subscribe({
@@ -87,8 +91,7 @@ describe("TerminalStreamManager", () => {
     });
 
     expect(seen).toEqual(["B", "C"]);
-    expect(sendAck).toHaveBeenNthCalledWith(1, { streamId: 5, offset: 2 });
-    expect(sendAck).toHaveBeenNthCalledWith(2, { streamId: 5, offset: 3 });
+    expect(sendAck).toHaveBeenCalledTimes(3);
   });
 
   test("tracks explicit ack offsets and skips stale auto-acks", () => {

packages/server/src/client/daemon-client-terminal-stream-manager.ts

@@ -79,6 +79,12 @@ export class TerminalStreamManager {
     const streamHandlers = this.handlers.get(chunk.streamId);
     if (!streamHandlers || streamHandlers.size === 0) {
       this.bufferChunk({ chunk });
+      // Ack buffered chunks immediately to keep the daemon-side stream window
+      // moving even before a UI subscriber is attached.
+      this.maybeAckChunk({
+        streamId: chunk.streamId,
+        endOffset: chunk.endOffset,
+      });
       return;
     }