[PWGEM,PhotonMeson] Adapt IsSelected function from cut librarires a…

[mhemmer-cern]

…nd add new cluster tables for reduced derived data size

• The IsSelected function defined in DalitzEECut, EMCPhotonCut, PHOSPhotonCut and V0PhotonCut was changed to always have as first argument the photon and then additional arguments and template arguments specifilcy for that photon reconstruction method, e.g. matchedtrack tables for EMC or type of the legs for V0. For DalitzEECut the arguments are now track1, track2, B_z instead of one argument that basically packed those three into a tuple.

• Based on the change above many tasks where changed accordingly where IsSelected was called. This was mostly just making sure the correct template arguments are given.

• Changed Pi0EtaToGammaGamma header files to make them more readable (hopefully). Main change here is the addition of Tags for PCM, EMC, PHOS and DalitzEE and streamlining the template parameters of the main struct and the runPairing function

• Add new EMCal cluster tables:

  • EmEmcClusters_000 to store just the cluster information
  • EmEmcMTracks to store just the matched global tracks in a flat table linked to the EmEmcClusters_000 index
  • EmEmcMSTracks to store just the matched secondary tracks in a flat table linked to the EmEmcClusters_000 index
  • MinClusters just like EmEmcClusters_000 but with reduced data size by compression to int16_t where possible
  • MinMTracks similar to above for EmEmcMTracks
  • MinMSTracks similar to above for EmEmcMSTracks

• Changed includes to follow IWYU for all touched files

• Changed M_PI calls where I saw them to use the o2 constants equivalent, since they are constexpr instead of just const.

• Optimize compile time by using is_table and is_iterator instead of typename for templates in Pi0EtaToGammaGamma task and photon cuts.

• Fix cpplint errors on all touched files and specifically for gammaConversions.h and gammaConversionsTruthOnlyMc.cxx

• Increment ClassDef of photon cuts

[github-actions]

O2 linter results: ❌ 807 errors, ⚠️ 1381 warnings, 🔕 30 disabled

[alibuild]

Auto-approving on behalf of @mhemmer-cern.

[alibuild]

Auto-approving on behalf of @mhemmer-cern.

[alibuild]

Error while checking build/O2Physics/o2 for 000192c at 2025-12-10 17:28:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/14160-slc9_x86-64/0/PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h:559:13: error: declaration of 'auto cache' has no initializer
/sw/SOURCES/O2Physics/14160-slc9_x86-64/0/PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h:559:13: error: declaration of 'auto cache' has no initializer
/sw/SOURCES/O2Physics/14160-slc9_x86-64/0/PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h:559:62: error: no matching function for call to 'o2::soa::Table<o2::aod::Hash<1951484669>, o2::aod::Hash<2854390773>, o2::aod::Hash<2286545062> >::sliceByCached(o2::framework::expressions::BindingNode&, int64_t) const'
/sw/SOURCES/O2Physics/14160-slc9_x86-64/0/PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h:559:62: error: no matching function for call to 'o2::soa::Table<o2::aod::Hash<1951484669>, o2::aod::Hash<2854390773>, o2::aod::Hash<2286545062> >::sliceByCached(o2::framework::expressions::BindingNode&, int64_t) const'
/sw/SOURCES/O2Physics/14160-slc9_x86-64/0/PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h:559:13: error: declaration of 'auto cache' has no initializer
ninja: build stopped: subcommand failed.

Full log here.