Use Attach brace style in .clang-format

Update .clang-format to set BreakBeforeBraces from Allman to Attach, switching opening brace placement to the same line (attached/K&R style). This enforces the project's preferred brace formatting and reduces diffs caused by brace placement changes.

Author: vanvught

.clang-format

@@ -14,7 +14,7 @@ AllowShortFunctionsOnASingleLine: Inline
 AllowShortIfStatementsOnASingleLine: true
 AllowShortLoopsOnASingleLine: true
 
-BreakBeforeBraces: Allman
+BreakBeforeBraces: Attach
 
 DerivePointerAlignment: false