leprachuan

fix(app): add null coalescing to localeCompare sort operations

2

Prevents TypeError when sorting items with undefined/null values. Applies defensive programming pattern across web UI and console. Fixes #6391

TypeError: Cannot read properties of undefined (reading 'localeCompare') in sort operations

1

### Description Multiple sort operations in the web UI crash when sorting items with undefined/null values. ``` TypeError: Cannot read properties of undefined (reading 'localeCompare') ``` ### OpenCode version v1.0.207+...