Fix TracksFromGenParticles - build tracks only for particles that reach the calorimeter

[SanghyunKo]

BEGINRELEASENOTES

• Fix TracksFromGenParticles - build tracks only for particles that reach the calorimeter

ENDRELEASENOTES

Currently a track is built for every charged MCParticle with a matched hit, which gives unphysical tracks: unstable baryons (Σ, Ξ, Ω, D…) that decay in the tracker, and both the parent and daughter of an in-flight decay (e.g. π/K → μ), so the same trajectory is double-counted.

Fix: skip particles with isDecayedInTracker() (new OnlyCaloReachingParticles property, default true). This drops the ghosts and in-flight-decay parents while keeping the calo-reaching daughter. Set the property false for the old behaviour.

Also skip charged particles with pt = 0 (exactly along the beam): their helix is singular (omega, tanLambda, Z0 → non-finite) and crashes the downstream Pandora track creation.

[SanghyunKo]

Release CI is expected to fail without key4hep/k4geo#581.

For nightly CI, it seems that one of the tests is using too much memory (nothing relevant to the PR):

real	4m3.444s
user	10m2.917s
sys	1m23.002s
Cacheable calls:    60 /  60 (100.0%)
  Hits:              0 /  60 ( 0.00%)
    Direct:          0
    Preprocessed:    0
  Misses:           60 /  60 (100.0%)
Local storage:
  Cache size (GB): 0.5 / 0.5 (103.1%)
  Cleanups:         50
  Hits:              0 /  60 ( 0.00%)
  Misses:           60 /  60 (100.0%)
Test project /k4rectracker/build
    Start 3: test_runDCHdigiV1
    Start 8: test_TrackFinder
    Start 1: test_DCHsimpleDigitizer
    Start 2: test_DCHsimpleDigitizerExtendedEdm
1/9 Test #3: test_runDCHdigiV1 ....................   Passed   89.17 sec
    Start 4: test_runDCHdigiV2
2/9 Test #4: test_runDCHdigiV2 ....................   Passed    2.91 sec
    Start 5: test_runVTXdigitizer
3/9 Test #1: test_DCHsimpleDigitizer ..............   Passed  180.69 sec
    Start 6: test_VTXdigitizerDetailed
4/9 Test #2: test_DCHsimpleDigitizerExtendedEdm ...   Passed  182.12 sec
    Start 7: test_TracksFromGenParticles
5/9 Test #6: test_VTXdigitizerDetailed ............   Passed   61.42 sec
/home/runner/work/_temp/d69dfa95-b515-44b1-8a9a-d59ba5052669.sh: line 115:  2431 Killed                  docker exec container /bin/bash -c "/mount.sh && /${name}/script_container.sh"
Error: Process completed with exit code 137.