test(server): skip posix executable fixtures on a Windows host#9565

Note

Skip POSIX executable fixture tests on Windows host

• Adds a host-platform windowsHost flag to four test suites and wraps tests that create POSIX executable stubs or require POSIX permission bits in conditional skips
• Affected suites: externalLauncher.test.ts, AntigravityInstallation.test.ts, providerMaintenance.test.ts, and ResourceMonitorBinary.test.ts
• Skipped tests run unchanged on non-Windows hosts; assertions and mocked behavior are preserved

^{Macroscope summarized ebe89b2.}

Note

Low Risk Test-only conditional skips; no runtime behavior changes. Coverage for skipped paths still runs on non-Windows hosts and via existing win32-mocked tests where noted.

Overview Makes the server test suite pass on Windows CI/dev machines by skipping cases that cannot run there, without changing production code or altering assertions on macOS/Linux.

Each affected suite adds a windowsHost guard (HostProcessPlatform.defaultValue() === "win32") and wraps selected tests with it.effect.skipIf(windowsHost) / it.live.skipIf(windowsHost). Those tests still create real temp dirs with #!/bin/sh stubs (or chmod 0o755) and resolve them under a linux/darwin platform mock; on Windows the temp path’s drive letter breaks POSIX PATH splitting on :, and NTFS does not expose the exec bits the Linux branch checks.

externalLauncher.test.ts skips the bulk of macOS/Linux/WSL file-manager and xdg-mime scenarios; win32-mocked tests (e.g. .CMD fixtures, Explorer/PowerShell reveal) stay enabled. providerMaintenance.test.ts skips four PATH-walk capability tests that use shell stubs. AntigravityInstallation.test.ts skips one explicit-path resolve test. ResourceMonitorBinary.test.ts skips two override tests that depend on POSIX exec bits under a Linux mock.

^{Reviewed by Cursor Bugbot for commit ebe89b26382b49528fe5db4e4843d3c2d4b6e5df. Bugbot is set up for automated code reviews on this repo. Configure here.}