Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Katze719

Doxyfile

@@ -5,7 +5,7 @@
 # Project related --------------------------------------------------------
 PROJECT_NAME           = "cpp-core"
 PROJECT_NUMBER         = "1.0"
-PROJECT_BRIEF          = "Header-only C++ helper library"
+PROJECT_BRIEF          = "Header-only API definitions for cross-platform serial communication"
 OUTPUT_DIRECTORY       = docs/html
 CREATE_SUBDIRS         = NO
 ALLOW_UNICODE_NAMES    = YES
@@ -51,7 +51,7 @@ FULL_SIDEBAR           = NO
 GENERATE_TREEVIEW      = YES
 DISABLE_INDEX          = NO
 ALPHABETICAL_INDEX     = YES
-GENERATE_DEPRECATEDLIST= YES
+GENERATE_DEPRECATEDLIST = YES
 
 # Source browsing
 SOURCE_BROWSER         = YES