Refactor tests and add platform-specific test cases

[creativeprojects]

• Removed the TestFilteredArgumentsRegression from wrapper_test.go and added it to wrapper_unix_test.go for Unix-specific testing.
• Added new test files for Unix and Windows configurations, including path handling, profile settings, and command execution.
• Implemented tests for handling environment variables in Unix and Windows.
• Created tests for path fixing and symlink evaluation in Unix.
• Added tests for scheduling mechanisms across different platforms (crond, launchd, systemd, and Windows).
• Introduced tests for shell command execution and argument escaping specific to Unix.
• Ensured that all tests are properly organized and follow the build constraints for platform-specific execution.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.76%. Comparing base (7a64653) to head (647121f).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #623   +/-   ##
=======================================
  Coverage   80.76%   80.76%           
=======================================
  Files         164      164           
  Lines       12116    12116           
=======================================
  Hits         9785     9785           
  Misses       1836     1836           
  Partials      495      495           

Flag	Coverage Δ
unittests	79.04% <ø> (ø)

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[Copilot]

Pull request overview

This PR reorganizes and expands the test suite by moving OS-dependent tests into platform-specific files (via build tags / OS filename suffixes), and adds additional coverage for path handling, scheduling backends, environment expansion, and FUSE-related remote configuration.

Changes:

• Split previously runtime-skipped tests into Unix-/Windows-/Darwin-/Systemd-specific test files using build constraints.
• Added new Unix-focused tests around argument escaping, executable path resolution, path fixing, and symlink evaluation.
• Adjusted CI/test configuration to include the fuse build tag and moved FUSE-dependent remote tests behind build tags.

Reviewed changes

Copilot reviewed 35 out of 35 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
wrapper_unix_test.go	Moved Unix-only wrapper tests behind !windows build tag.
wrapper_test.go	Removed Unix-only wrapper tests from the cross-platform test file.
util/executable_unix_test.go	Added non-Windows executable resolution tests using a built helper binary.
util/executable_test.go	Removed Unix-only executable tests from the shared test file.
shell/expand_env_modifier_test.go	Made env expansion tests !windows via build tag instead of runtime skip.
shell/command_unix_test.go	Moved interrupt/signalling test to a Unix-only test file.
shell/command_test.go	Removed Unix-only interrupt/signalling test from cross-platform file.
shell/arg_unix_test.go	Added Unix-only argument escaping test cases.
shell/arg_test.go	Removed Unix-only argument escaping tests from cross-platform file.
serve_test.go	Made not-found assertion cross-platform by loosening error-message matching.
schedule/schedule_windows_test.go	Added Windows scheduler init test (Windows-only via filename suffix).
schedule/schedule_test.go	Removed platform-specific scheduler init tests from shared test file.
schedule/schedule_systemd_test.go	Added systemd init test behind !windows && !darwin build tag.
schedule/schedule_darwin_test.go	Added launchd init test (Darwin-only via filename suffix).
schedule/schedule_crond_test.go	Added crond init test behind !windows build tag.
schedule/handler_test.go	Made lookupBinary tests !windows via build tag instead of runtime skip.
remote_test.go	Removed FUSE-dependent remote configuration tests from the default test set.
remote_fuse_test.go	Added FUSE-gated remote configuration tests behind !windows && fuse.
Makefile	Updated test-ci to always run tests with -tags=fuse.
main_test.go	Simplified binary naming using platform.Executable(...).
lock/lock_test.go	Removed non-Windows signal tests from shared lock tests.
lock/lock_signal_test.go	Added !windows signal-handling tests in a dedicated file.
integration_test.go	Improved Windows skip message for unsupported integration fixtures.
fuse/mount_test.go	Gated FUSE mount tests behind !windows && fuse.
filesearch/filesearch_unix_test.go	Added !windows tests for tilde expansion and root-relative path behavior.
filesearch/filesearch_test.go	Removed Unix-only filesearch tests from the shared test file.
config/profile_unix_test.go	Added !windows tests for root/path resolution in profiles.
config/profile_test.go	Removed Unix-only profile/path tests from shared test file.
config/path_windows_test.go	Added Windows-specific path-fixing tests (Windows-only via filename suffix).
config/path_unix_test.go	Added !windows path-fixing + symlink evaluation tests.
config/path_test.go	Removed OS-specific path tests from shared file, leaving common env expansion tests.
config/jsonschema/schema_test.go	Removed the !ajv_test build constraint from the schema tests.
config/confidential_unix_test.go	Added !windows confidential/env-var behavior tests.
config/confidential_test.go	Removed Unix-only confidential/env-var tests from shared file.
.vscode/settings.json	Updated local Go build tags to include fuse.

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