fix: preserve post-compaction memory sync setting

src/config/config.schema-regressions.test.ts

@@ -66,6 +66,24 @@ describe("config schema regressions", () => {
     expect(res.ok).toBe(true);
   });
 
+  it("accepts memorySearch sync.sessions.postCompactionForce", () => {
+    const res = validateConfigObject({
+      agents: {
+        defaults: {
+          memorySearch: {
+            sync: {
+              sessions: {
+                postCompactionForce: false,
+              },
+            },
+          },
+        },
+      },
+    });
+
+    expect(res.ok).toBe(true);
+  });
+
   it("accepts safe iMessage remoteHost", () => {
     const res = validateConfigObject({
       channels: {