Add documentation hygiene guidance (#1197)

Add tests for using enum and union members (#1196)

Add integration test for static imports via use (#1195)

Ensure unions must be global (#1193)

Add checks for has_value operator (#1192)

• validate that has_value members used with the ? operator are bool properties
• add integration test covering invalid has_value members

Support '?' + 'has_value' on reference types (#1190)

Where a class has a bool has_value property, the '?' operator should only return true if a not null and has_value returns true

Improve src READMEs (#1191)

Add Copilot instructions (#1189)

Updated documentation for AI agents (#1188)

• Introduced a new file GHUL.md containing a comprehensive tutorial and quick reference for the ghūl programming language, covering syntax, types, control flow, and data structures.
• Reworked AGENTS.md and added a reference to GHUL.md
• Updated README.md to include a reference to GHUL.md file

Update AGENTS with test run times (#1186)