[PWGHF] Add flags and additional columns to the full c–d table for possible correlated-background studies

[zhangbiao-phy]

This PR extends the c-deuteron analysis tables and selection workflow to support studies of correlated and combinatorial MC backgrounds under different mass hypotheses.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 0 disabled

[alibuild]

Auto-approving on behalf of @zhangbiao-phy.

[alibuild]

Error while checking build/O2Physics/code-check for bfef27f at 2026-09-01 17:47:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 8 errors and 3 warnings.'
Found 8 errors and 3 warnings.
++ [[ 8 -gt 0 ]]
++ cat /sw/BUILD/35da40cabb2c5e906380b3f071b6442ea861923d/O2Physics-code-check/errors.txt
PWGHF/D2H/Tasks/taskCd.cxx:276:15: error: member 'cmToMum' of type 'const float' is const qualified [cppcoreguidelines-avoid-const-or-ref-data-members,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:74:74: error: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:77:52: error: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:318:34: error: variable 'pidTrackPos1Deuteron' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:319:34: error: variable 'pidTrackPos2Deuteron' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:320:34: error: variable 'pidTrackPos1Pion' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:321:34: error: variable 'pidTrackPos2Pion' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
PWGHF/TableProducer/candidateSelectorCd.cxx:322:34: error: variable 'pidTrackNegKaon' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
++ [[ 3 -gt 0 ]]
++ cat /sw/BUILD/35da40cabb2c5e906380b3f071b6442ea861923d/O2Physics-code-check/warnings.txt
PWGHF/D2H/Tasks/taskCd.cxx:274:20: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGHF/D2H/Tasks/taskCd.cxx:275:20: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGHF/TableProducer/candidateSelectorCd.cxx:107:7: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
++ [[ 8 -gt 0 ]]
++ exit 1
--

Full log here.

[alibuild]

Auto-approving on behalf of @zhangbiao-phy.