fix: Preserve Include directives and global SSH config settings

[aabichou]

Preserve Global SSH Configuration Directives (Include Statements)

Hello @Adembc, this PR fixes an issue where global SSH configuration directives—especially Include statements—were not even loaded when modifying server entries through the application.

Problematic SSH Config

# =====================================================================
# Includes
# =====================================================================
Include terraform.d/*
Include personal.d/*
Include work.d/*
Include ~/.orbstack/ssh/config

The above config was not loaded or preserved when adding, updating, or deleting servers.

Key Changes

• Preserve implicit host block: Capture and restore the first host block containing global directives when loading and saving SSH config files.
• Recursive Include processing: Extract hosts from Include directives recursively to handle all included files.
• Comprehensive tests: Added include_preservation_test.go to ensure Include directives are preserved across all operations.

Technical Details

• config_io.go: Store and restore the implicit host block during save operations.
• mapper.go: Recursively process Include directives to extract hosts from included files.
• Repository struct: Added implicitHost field to maintain global directives.

Testing

All Include directives are now properly loaded and preserved when:

• Adding new servers
• Updating existing servers
• Deleting servers

✅ Users’ SSH config structure now remains intact, and Include statements continue to work as expected.

Thanks for your time !