chore(claude): make commit format explicit in /precommit command

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: nanotaboada

.claude/commands/precommit.md

@@ -5,4 +5,4 @@ Run the pre-commit checklist for this project:
 3. Run `dotnet test --settings .runsettings` — all tests must pass.
 4. Run `dotnet csharpier --check .` — must pass (run `dotnet csharpier .` to auto-fix).
 
-Run steps 2–4, report the results clearly, then propose a branch name and commit message following Conventional Commits format for my approval. Do not create the branch or commit until I explicitly confirm.
+Run steps 2–4, report the results clearly, then propose a branch name and commit message for my approval using the format `type(scope): description (#issue)` (max 80 chars; types: `feat` `fix` `chore` `docs` `test` `refactor` `ci` `perf`). Do not create the branch or commit until I explicitly confirm.