Made the global_rules section conditional on logging being enabled.
Previously, when logging was disabled, global_rules was rendered as
an empty object (null), causing a lint error:
"Invalid input: expected record, received null at global_rules"
Now the entire global_rules section is only included when there are
actual rules to add.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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