[ALICE3] Add digitization for the forward tracker

[marcovanleeuwen]

Merge ALICE3 FT3 into TRK and add digitisation for the forward disks.

[marcovanleeuwen]

Hi all,

I checked the error messages in validation and they seem to be unrelated to my commits. In the build/SLC, there is the following:

Could not find the DPL InfoLogger

while in the arm build, there is an error in the simulation test for the (run 2) muon ID:

Detectors/MUON/MID/Simulation/test/testSimulation.cxx 
....
Warning: no efficiency found for deId: 20  column: 6  line: 4  type: 0
Warning: no efficiency found for deId: 20  column: 6  line: 4  type: 2
Warning: no efficiency found for deId: 20  column: 6  line: 4  type: 1
/sw/SOURCES/O2/slc9_aarch64-slc9_aarch64/0/Detectors/MUON/MID/Simulation/test/testSimulation.cxx(492): �[1;31;49merror: in "o2_mid_simulation/MID_SimClusters/_5": check sortedPC.size() == 1 has failed [0 != 1]
Failure occurred in a following context:
    deId = 20; �[0;39;49m
/sw/SOURCES/O2/slc9_aarch64-slc9_aarch64/0/Detectors/MUON/MID/Simulation/test/testSimulation.cxx(494): �[1;31;49merror: in "o2_mid_simulation/MID_SimClusters/_5": Point: (112.816, -36.1202)  outside PC:
Failure occurred in a following context:
    deId = 20; �[0;39;49m

Is there something that I should still check, or can we move on with the merge?

Best regards, Marco.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 37625d6 at 2026-07-24 18:03:

## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -v clang-diagnostic-error error-log.txt
++ grep ' error:'
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Detectors/Upgrades/ALICE3/TRK/base/src/GeometryTGeo.cxx:174:31: error: statement should be inside braces [readability-braces-around-statements]
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Detectors/Upgrades/ALICE3/TRK/base/src/GeometryTGeo.cxx:741:24: error: statement should be inside braces [readability-braces-around-statements]
++ [[ 0 == 0 ]]
++ exit 1
--

Full log here.