Fix Rust e2e compile errors and Python import order for 1.0.76-2

The Rust e2e suite only builds with `--features test-support`, so two more
1.0.76-2 field additions were missed: `include_ephemeral` on
`EventLogReadRequest` and `defer_if_model_change_queued` on
`ModelSwitchToRequest`. Also restores alphabetical import order in the
Python commands e2e test after the `SessionCommandsListRequest` rename.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 72193c60-62cd-459b-a6f3-4b2798a7eb4b

Author: MackinnonBuck

python/e2e/test_rpc_commands_e2e.py

@@ -6,10 +6,10 @@
 
 from copilot.rpc import (
     CommandsInvokeRequest,
-    SessionCommandsListRequest,
     CommandsRespondToQueuedCommandRequest,
     ExecuteCommandParams,
     QueuedCommandHandled,
+    SessionCommandsListRequest,
     SlashCommandKind,
     SlashCommandTextResult,
 )

rust/tests/e2e/rpc_event_log.rs

@@ -45,6 +45,7 @@ async fn should_read_persisted_events_from_beginning() {
                     .read(EventLogReadRequest {
                         agent_scope: None,
                         cursor: None,
+                        include_ephemeral: None,
                         max: Some(100),
                         types: Some(json!("*")),
                         wait_ms: Some(0),
@@ -90,6 +91,7 @@ async fn should_return_tail_cursor_and_read_empty_when_no_new_events() {
                     .read(EventLogReadRequest {
                         agent_scope: None,
                         cursor: Some(tail.cursor),
+                        include_ephemeral: None,
                         max: Some(10),
                         types: Some(json!("*")),
                         wait_ms: Some(0),
@@ -172,6 +174,7 @@ async fn should_longpoll_with_types_filter_for_titlechanged_event() {
                 let read_future = event_log.read(EventLogReadRequest {
                     agent_scope: None,
                     cursor: Some(tail.cursor),
+                    include_ephemeral: None,
                     max: Some(10),
                     types: Some(json!(["session.title_changed"])),
                     wait_ms: Some(5_000),

rust/tests/e2e/rpc_session_state_extras.rs

@@ -315,6 +315,7 @@ async fn should_add_byok_provider_and_model_at_runtime() {
                     .model()
                     .switch_to(ModelSwitchToRequest {
                         context_tier: None,
+                        defer_if_model_change_queued: None,
                         model_capabilities: None,
                         model_id: selection_id.to_string(),
                         reasoning_effort: None,