AdjCN currently ignores the 'compar' field from AP, causing the NP in
comparative constructions (ComparA) to be dropped.
Example:
- Expected: "guri ka weyn baabuur"
- Actual: "guri ka weyn"
This change appends ap.compar in AdjCN, preserving the comparison NP.
A corresponding test has been added to src/somali/unittest/ap.gftest.