johnl-oai c6e29b4fcb Migrate the Windows MXC sandbox to mxc-sdk (#55378) ...

## What changed

- Replace the separate MXC crates with `mxc-sdk` and adapt request construction to its policy and optional environment fields.
- Preserve the native availability probe by caching successful process security environment creation and startup attribute initialization without launching a process.
- Use the SDK's native denied-path support check and configure Bazel resource compilation for Windows GNU targets.

## Testing

Extend the request construction test to verify that nonempty environments use `Some` and empty environments use `None`.

GitOrigin-RevId: 2765c8fd19ee60661b0ce7cb3cba51acadda201a

2026-10-19 20:54:41 +00:00

..

availability.rs

Migrate the Windows MXC sandbox to mxc-sdk (#55378)

2026-10-19 20:54:41 +00:00

lib.rs

Migrate the Windows MXC sandbox to mxc-sdk (#55378)

2026-10-19 20:54:41 +00:00

native.rs

Migrate the Windows MXC sandbox to mxc-sdk (#55378)

2026-10-19 20:54:41 +00:00

policy_tests.rs

Migrate the Windows MXC sandbox to mxc-sdk (#55378)

2026-10-19 20:54:41 +00:00

policy.rs

Migrate the Windows MXC sandbox to mxc-sdk (#55378)

2026-10-19 20:54:41 +00:00

transport_tests.rs

Preserve Windows startup variables and MXC child environment defaults (#54027)

2026-10-14 16:31:06 +00:00

transport.rs

Preserve Windows startup variables and MXC child environment defaults (#54027)

2026-10-14 16:31:06 +00:00

windows.rs

Migrate the Windows MXC sandbox to mxc-sdk (#55378)

2026-10-19 20:54:41 +00:00