fix(record): preserve trace v2/v3 compatibility

Keep protocol 1.0 peers connected, return v2 traces to legacy clients, and allow the new CLI to export both v2 and v3 recordings.

crates/bsk-cli/tests/handshake_compat.rs

@@ -124,7 +124,7 @@ async fn handshake_ok_when_protocol_matches() {
     );
     assert_eq!(
         result.min_compatible_protocol.as_deref(),
-        Some("1.1"),
+        Some("1.0"),
         "daemon must advertise protocol floor for new extensions"
     );
     handle.shutdown().await;
@@ -169,7 +169,7 @@ async fn handshake_skew_when_protocol_minor_differs() {
 }
 
 #[tokio::test]
-async fn handshake_rejects_pre_trace_v3_extension() {
+async fn handshake_skew_when_protocol_1_0_peer() {
     let (handle, _sock) = spawn_daemon().await;
     let mut ws = open_ws(handle.ws_addr()).await;
     let resp = send_handshake_with_floors(
@@ -181,12 +181,15 @@ async fn handshake_rejects_pre_trace_v3_extension() {
     )
     .await;
     match resp.body {
-        ResponseBody::Err(e) => {
-            assert_eq!(e.code, ErrorCode::VersionTooOld);
-            assert!(e.message.contains("below local min_compatible_protocol"));
-        }
-        other => panic!("pre-Trace-v3 extension must be rejected, got {other:?}"),
+        ResponseBody::Ok(_) => {}
+        other => panic!("protocol 1.0 peer should connect with skew, got {other:?}"),
     }
+    let state = handle.state();
+    let client = state
+        .browsers
+        .get(&bsk::daemon::browsers::BrowserId(TEST_EXT_ID.into()))
+        .expect("browser registered");
+    assert!(client.version_skew);
     handle.shutdown().await;
 }
 

crates/bsk-cli/tests/record_stop_retry.rs

@@ -10,8 +10,8 @@ use bsk::daemon::{self, DaemonConfig};
 use bsk::ipc_client::IpcClient;
 use bsk_protocol::system::{HandshakeParams, HandshakeResult};
 use bsk_protocol::tools::{
-    RecordStopResult, RecorderInfo, SessionStartParams, SessionStartResult, StopReason, Trace,
-    TraceEntry, TraceState, VOM_FORMAT_VERSION,
+    RecordStopResult, RecordedTrace, RecorderInfo, SessionStartParams, SessionStartResult,
+    StopReason, Trace, TraceEntry, TraceState, VOM_FORMAT_VERSION,
 };
 use bsk_protocol::{
     BrowserPeerInfo, ErrorCode, Frame, Method, RequestFrame, ResponseBody, ResponseFrame, RpcError,
@@ -139,7 +139,7 @@ fn run_extension(
                     } else {
                         ResponseBody::Ok(
                             serde_json::to_value(RecordStopResult {
-                                trace: sample_trace(),
+                                trace: RecordedTrace::V3(sample_trace()),
                             })
                             .unwrap(),
                         )