feat: add atomic profile update flag and update clean command

- Add `-fprofile-update=atomic` flag to both GCC and Clang compiler configurations for thread-safe coverage data updates
- Change `--all` argument in clean command to default to True and add `-a` short option for consistency with common CLI patterns

tools/cbuild/cbuild.py

@@ -611,6 +611,7 @@ class GccCompiler(Compiler):
                 "-O2",
                 "-g",
                 "--coverage",
+                "-fprofile-update=atomic",
                 "-Wall",
                 "-Wextra",
             ],
@@ -650,6 +651,7 @@ class ClangCompiler(Compiler):
                 "-O2",
                 "-g",
                 "--coverage",
+                "-fprofile-update=atomic",
                 "-Wall",
                 "-Wextra",
             ],
@@ -1070,7 +1072,9 @@ def create_parser():
     # clean 命令
     clean_parser = subparsers.add_parser("clean", help="清理构建产物")
     add_common_args(clean_parser)
-    clean_parser.add_argument("--all", action="store_true", help="清理所有模式")
+    clean_parser.add_argument(
+        "-a", "--all", action="store_true", default=True, help="清理所有模式"
+    )
 
     # tree 命令
     tree_parser = subparsers.add_parser("tree", help="显示依赖树")