Format CMake files with cmake-format

[thilinarmtb]

And update GitHub CI workflows.

[Copilot]

Pull Request Overview

This pull request applies cmake-format to standardize CMake file formatting across the entire OCCA project. The changes introduce a .cmake_format.json configuration file with an 80-character line width and 2-space indentation, add a new GitHub Actions workflow to enforce formatting on future changes, and reformat all existing CMake files according to these standards.

• Adds .cmake_format.json configuration file with formatting rules
• Adds .github/workflows/format.yml to check CMake formatting in CI
• Reformats all CMakeLists.txt and .cmake files throughout the project

Reviewed Changes

Copilot reviewed 74 out of 77 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
.cmake_format.json	New configuration file defining CMake formatting standards (80-char width, 2-space indent)
.github/workflows/format.yml	New CI workflow to verify CMake formatting on push/PR
.github/workflows/cff-validator.yml	Adds pull_request trigger for CITATION.cff validation
.github/workflows/build.yml	Removes trailing blank line
CMakeLists.txt	Reformatted according to cmake-format standards
bin/CMakeLists.txt	Reformatted with consistent indentation and line wrapping
cmake/*.cmake	All Find modules and helper scripts reformatted
src/**/CMakeLists.txt	All source directory build files reformatted for consistency
tests/CMakeLists.txt	Test configuration reformatted
examples/**/CMakeLists.txt	All example build files reformatted

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.