[PWGDQ] add rematching task

[aferrero2707]

Add task to perform the following steps:

• refit the MCH tracks with a custom alignment (optional)
• apply alignment corrections to the MFT tracks (optional, no track refitting applied)
• run a user-selected matching algorithm, based on chi2 or ML models
• output the refitted and rematched tracks as FwdTracksReAlignand FwdTrksCovReAlign tables

[github-actions]

O2 linter results: ❌ 3 errors, ⚠️ 25 warnings, 🔕 6 disabled

[alibuild]

Error while checking build/O2Physics/o2 for 3c35194 at 2026-06-19 16:03:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/global-muon-matcher.cxx:318:25: error: template constraint failure for 'template<class T>  requires  is_table<T> using o2::framework::Preslice = o2::framework::PresliceBase<T, o2::framework::PreslicePolicySorted, false>'
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/global-muon-matcher.cxx:318:52: error: cannot convert 'const o2::framework::expressions::BindingNode' to 'int' in initialization
/sw/slc9_x86-64/O2/daily-20260619-0700-local1/include/Framework/StructToTuple.h:141:38: error: static assertion failed: You need to make sure that you have implicit constructors or that you call the explicit constructor correctly.
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/global-muon-matcher.cxx:1288:45: error: no matching function for call to 'o2::soa::Table<o2::aod::Hash<408887460>, o2::aod::Hash<3067181455>, o2::aod::Hash<2286545062> >::sliceBy(int&, int64_t) const'
/sw/slc9_x86-64/GCC-Toolchain/v14.2.0-alice2-1/include/c++/14.2.0/bits/stl_construct.h:115:28: error: no matching function for call to 'construct_at(GlobalMuonMatching*&)'
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for 3c35194 at 2026-06-19 16:04:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/global-muon-matcher.cxx:318:25: error: template constraint failure for 'template<class T>  requires  is_table<T> using o2::framework::Preslice = o2::framework::PresliceBase<T, o2::framework::PreslicePolicySorted, false>'
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/global-muon-matcher.cxx:318:52: error: cannot convert 'const o2::framework::expressions::BindingNode' to 'int' in initialization
/sw/slc9_x86-64/O2/daily-20260619-0700-local1/include/Framework/StructToTuple.h:141:38: error: static assertion failed: You need to make sure that you have implicit constructors or that you call the explicit constructor correctly.
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGDQ/Tasks/global-muon-matcher.cxx:1288:45: error: no matching function for call to 'o2::soa::Table<o2::aod::Hash<408887460>, o2::aod::Hash<3067181455>, o2::aod::Hash<2286545062> >::sliceBy(int&, int64_t) const'
/sw/slc9_x86-64/GCC-Toolchain/v14.2.0-alice2-1/include/c++/14.2.0/bits/stl_construct.h:115:28: error: no matching function for call to 'construct_at(GlobalMuonMatching*&)'
ninja: build stopped: subcommand failed.

Full log here.

[vkucera]

@aferrero2707 Your branch is 3 weeks behind the upstream and missing several DQ PRs. Are you sure your PR works fine with the current master?

[aferrero2707]

@vkucera I just double-checked and I do not see any merged PR that would be relevant for the code introduced here, except one that I tested extensively (see #16700). The new rematching task is actually quite self-contained, and supposed to run upstream of most DQ tools.

[mcoquet642]

@vkucera compiled and tested it with latest O2Physics tag, everything works. Merging

[vkucera]

Please fix the introduced errors and warnings.