Update @github/copilot to 1.0.32-1 (#1105)

* Update @github/copilot to 1.0.32-1

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

* Add deprecation message to [Obsolete] attributes in C# generator

Agent-Logs-Url: https://github.com/github/copilot-sdk/sessions/35a08e5f-ea8a-4494-9e24-084aad8ec639

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Restore accidentally modified snapshot file

Agent-Logs-Url: https://github.com/github/copilot-sdk/sessions/35a08e5f-ea8a-4494-9e24-084aad8ec639

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

* Fix CI failures for @github/copilot 1.0.32-1 update

- Add shared nullable-required schema normalization in codegen utils
  (converts required \ properties with null descriptions to anyOf pattern)
- Add Python forward-reference topological sort in codegen
- Update Go type alias for renamed PurpleModelCapabilitiesOverrideLimitsVision
- Add Go type conversion helper for duplicate quicktype-generated types
- Add Node.js model capabilities normalization (backfill supports/limits)
- Regenerate all language bindings with fixes applied

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

* Fix TypeScript type errors in model capabilities normalization

Use 'any' cast instead of 'Record<string, unknown>' to avoid
TS2352 errors with strict interface types.

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

* Fix Go formatting in session.go

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

* Fix Python ModelSwitchToRequest type mismatch

Import ModelCapabilitiesClass (used by generated ModelSwitchToRequest)
instead of ModelCapabilitiesOverride which is now a separate duplicate type.

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

* Fix flaky TestMultiClient permission event assertions

Client 2's event handler receives events asynchronously, so checking
immediately after SendAndWait may miss them. Replace instant checks
with polling (waitForEventsByType) that retries for up to 5 seconds.
Applied to both 'approves' and 'rejects' subtests for consistency.

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

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: 4 people