Update @github/copilot to 1.0.48 (#1292)

* Update @github/copilot to 1.0.48

- Updated nodejs and test harness dependencies
- Re-ran code generators
- Formatted generated code

* Fix Python and Rust SDK compilation after @github/copilot 1.0.48 update

The 1.0.48 codegen made models.list, account.getQuota, and
session.commands.list require explicit request params instead of
accepting no arguments.

Python:
- Update test call sites to pass ModelsListRequest() (all fields optional)
- Add ModelsListRequest import where needed

Rust:
- Add missing AccountGetQuotaRequest, ModelsListRequest, and
  CommandsListRequest structs to generated api_types.rs (all fields
  optional, matching the Python/Node generated schemas)
- Update callers in lib.rs, tests, and README to pass Default::default()

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Regenerate all SDK types after rebase

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix Python SDK test failures after 1.0.48 update

Fix ruff I001 import sorting violations in test_rpc_e2e.py and
test_rpc_timeout.py caused by newly added ModelsListRequest import.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix Python SDK Windows test failure

Increase timeout for test_both_clients_see_tool_request_and_completion_events
from 10s to 30s. On Windows CI, the first multi-client TCP test needs extra
time for CLI subprocess and TCP connection establishment.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]