docs: add changelog entries for generic class fixes

Author: ian-pascoe

changelog.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 <!-- Add all new changes here. They will be moved under a version at release -->
+* `FIX` Generic class inheritance with type arguments now works correctly (e.g., `class Bar: Foo<integer>`) [#1929](https://github.com/LuaLS/lua-language-server/issues/1929)
+* `FIX` Method return types on generic classes now resolve correctly (e.g., `Box<string>:getValue()` returns `string`) [#1863](https://github.com/LuaLS/lua-language-server/issues/1863)
+* `FIX` Self-referential generic classes no longer cause infinite expansion in hover display [#1853](https://github.com/LuaLS/lua-language-server/issues/1853)
 
 ## 3.16.4
 `2025-12-25`