fix: resume SSE stream on pageshow regardless of persisted flag

packages/app/src/context/server-sdk.test.ts

@@ -4,14 +4,25 @@ import type { OpenCodeEvent } from "@opencode-ai/client/promise"
 import type { Event } from "@opencode-ai/sdk/v2/client"
 
 describe("resumeStreamAfterPageShow", () => {
-  test("restarts a stream only after a back-forward cache restore", () => {
+  test("restarts the stream on pageshow regardless of persisted flag", () => {
     let starts = 0
     const start = () => starts++
 
     resumeStreamAfterPageShow({ persisted: false } as PageTransitionEvent, start)
     resumeStreamAfterPageShow({ persisted: true } as PageTransitionEvent, start)
 
-    expect(starts).toBe(1)
+    expect(starts).toBe(2)
+  })
+
+  test("is safe to call repeatedly (start is idempotent)", () => {
+    let starts = 0
+    const start = () => starts++
+
+    resumeStreamAfterPageShow({ persisted: false } as PageTransitionEvent, start)
+    resumeStreamAfterPageShow({ persisted: false } as PageTransitionEvent, start)
+    resumeStreamAfterPageShow({ persisted: false } as PageTransitionEvent, start)
+
+    expect(starts).toBe(3)
   })
 })
 

packages/app/src/context/server-sdk.tsx

@@ -159,8 +159,7 @@ function currentDeltaFragment(event: CurrentDelta) {
   return event.type === "session.compaction.delta" ? event.data.text : event.data.delta
 }
 
-export function resumeStreamAfterPageShow(event: PageTransitionEvent, start: () => unknown) {
-  if (!event.persisted) return
+export function resumeStreamAfterPageShow(_event: PageTransitionEvent, start: () => unknown) {
   start()
 }