Ignore local clangd/cmake-lsp tooling caches

.gitignore

@@ -52,6 +52,10 @@
 /cmake-build-*/
 /compile_commands.json
 
+# Editor/LSP tooling caches
+/.cache/
+/.clang-tidy-db/
+
 # CMake internals
 CMakeCache.txt
 cmake_install.cmake