docs: update by pre-commit

Author: shenxianpeng

.github/copilot-instructions.md

@@ -132,7 +132,7 @@ Run: `git add . && git commit -m "initial" && pre-commit run --all-files`
 
 ### Build Times and Expectations
 - Package installation: 2-3 minutes
-- Test suite (working tests): 6-8 minutes  
+- Test suite (working tests): 6-8 minutes
 - Coverage tests: 8-10 minutes
 - Individual hook execution: 15-20 seconds (first use), 1-2 seconds (subsequent)
 - Pre-commit setup: 15-20 seconds (when network allows)
@@ -143,4 +143,4 @@ Run: `git add . && git commit -m "initial" && pre-commit run --all-files`
 - Use local system hooks in `.pre-commit-config.yaml` to avoid network timeouts
 - Test hooks directly with `python -m cpp_linter_hooks.{tool}` before using via pre-commit
 
-Always validate that your changes don't break the core functionality by running the hook validation scenarios above.
+Always validate that your changes don't break the core functionality by running the hook validation scenarios above.