fix(knowledge): scope pins to sessions

packages/ui/src/sync/__tests__/issue-2039.test.ts

@@ -373,6 +373,27 @@ describe("issue 2039 draft auto-accept", () => {
     expect(permissionAutoAcceptCalls).toHaveLength(0)
   })
 
+  test("transfers draft project context pins only to the session it creates", async () => {
+    useSessionUIStore.getState().openNewSessionDraft({
+      projectContextPins: { notes: ["note-a"], plans: [] },
+    })
+    useSessionUIStore.getState().setDraftProjectContextPin("plan", "plan-a", true)
+
+    await materializeOpenDraftSession({ providerID: "provider", modelID: "model" })
+
+    expect(createSessionCalls[0]?.metadata).toEqual({
+      openchamber: {
+        project_context_pins: { notes: ["note-a"], plans: ["plan-a"] },
+      },
+    })
+    expect(useSessionUIStore.getState().newSessionDraft.projectContextPins).toBe(undefined)
+
+    useSessionUIStore.getState().openNewSessionDraft()
+    await materializeOpenDraftSession({ providerID: "provider", modelID: "model" })
+
+    expect(createSessionCalls[1]?.metadata).toBe(undefined)
+  })
+
   test("uses the server-authoritative directory after worktree session creation", async () => {
     createdSessionDirectory = "/canonical/worktree"
     useSessionUIStore.getState().openNewSessionDraft({