fix: explicit UTF-8 encoding in test _make_package helper to unblock Windows CI

[Copilot]

Description

On Windows, write_text() defaults to cp1252, which cannot encode the Unicode tag character \U000e0041 used in test_critical_security_finding_blocks_write, causing a UnicodeEncodeError in CI on windows-latest.

• tests/unit/integration/test_command_integrator.py line 37: Added encoding="utf-8" to the module-level _make_package helper's write_text call, matching the identical fix already applied at line 292 in the same file.

# Before
(prompts_dir / name).write_text(content)

# After
(prompts_dir / name).write_text(content, encoding="utf-8")

Type of change

• Bug fix
• New feature
• Documentation
• Maintenance / refactor

Testing

• Tested locally
• All existing tests pass
• Added tests for new functionality (if applicable)

Original prompt

CI Failure on Windows

The CI/CD Pipeline is failing on windows-latest with this error:

FAILED tests/unit/integration/test_command_integrator.py::TestCursorCommandPanelFindings::test_critical_security_finding_blocks_write - UnicodeEncodeError: 'charmap' codec can't encode character '\U000e0041' in position 39: character maps to <undefined>

Root Cause

The shared module-level _make_package helper function at line 37 of tests/unit/integration/test_command_integrator.py uses write_text(content) WITHOUT specifying encoding="utf-8". On Windows, the default encoding is cp1252, which cannot handle the Unicode tag character \U000e0041 used in the test_critical_security_finding_blocks_write test.

Fix Required

In tests/unit/integration/test_command_integrator.py, line 37, change:

(prompts_dir / name).write_text(content)

to:

(prompts_dir / name).write_text(content, encoding="utf-8")

This is a ONE LINE change. The fix is identical to what was already done at line 292 in the same file for a similar write_text call. Do NOT change anything else in the file.

Verification

After the fix, the test TestCursorCommandPanelFindings::test_critical_security_finding_blocks_write should pass on Windows since the file will be written with explicit UTF-8 encoding regardless of the platform default.

[Copilot]

Pull request overview

Fixes a Windows CI failure in the unit test suite by making test fixture file-writing deterministic across platforms (avoiding the Windows default cp1252 encoding).

Changes:

• Updated the shared _make_package test helper to write prompt files with explicit encoding="utf-8".