Maintain work

[Michal-Pogorzelec]

No description provided.

[Copilot]

Copilot review overview

🔵 Needs a closer look

Update the Makefile to avoid duplicate example execution and preserve the documented run target.

Review effort: Lite
Findings: None

What changed in this PR

This pull request improves codec failure atomicity and strengthens testing, CI, coverage, and project metadata.

Changes:

• Preserves outputs when codec operations fail.
• Adds boundary, sanitizer, and coverage validation.
• Updates documentation, build targets, headers, and licensing metadata.

File	Reviewed changes
tools/​coverage-html.sh	Adds coverage threshold enforcement.
tests/​unit_tests.c	Updates unit-test support.
tests/​test_runners.h	Updates test runner declarations.
tests/​test_cuc.c	Adds CUC failure and boundary tests.
tests/​test_cds.c	Adds CDS failure and boundary tests.
tests/​test_ccs.c	Adds CCS failure and boundary tests.
tests/​cunit.h	Updates test framework support.
src/​cuc.c	Makes CUC operations transactional.
src/​cds.c	Makes CDS operations transactional.
src/​ccs.c	Makes CCS operations transactional.
README.md	Updates build and validation documentation.
Makefile	Adds warnings, tests, sanitizers, and example targets; requires avoiding duplicate example execution and preserving run.
LICENSE	License text should remain canonical; place project notices in source headers.
include/​cuc.h	Documents CUC failure behavior and adds licensing metadata.
include/​cds.h	Documents CDS failure behavior and adds licensing metadata.
include/​ccs.h	Documents CCS failure behavior and adds licensing metadata.
examples/​cuc_example.c	Adds licensing metadata.
examples/​cds_example.c	Adds licensing metadata.
examples/​ccs_example.c	Adds licensing metadata.
.gitignore	Updates repository ignore rules.
.github/​workflows/​ci.yml	Adds CI, coverage, and sanitizer jobs.
.clang-format	Updates C formatting configuration.

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