MFT: Fix negative capacity tori

[sawenzel]

The twelve Torus2 and TorusW2 volumes of the heat exchanger were defined with a negative delta-phi. ROOT does not normalise this value, resulting in a negative volume capacity. As a consequence, no points were found inside these volumes and neither the pipe bends nor the water contributed any material.

The sectors are now defined as the equivalent positive 270°–90° sector. This is the intended quadrant, and the torus ends now match exactly the adjacent Tube2 and Tube3 end faces for all six half/disk combinations.

The change also makes the geometry exportable to GDML, which Geant4 rejects when a torus has a negative delta-phi.

https://its.cern.ch/jira/browse/O2-7153

[alibuild]

Error while checking build/O2/fullCI_slc9 for cf7b078 at 2026-09-01 20:15:

## sw/BUILD/O2-sim-challenge-test-latest/log
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/48}
./sim-challenge.log[ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/49}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/48}
./sim-challenge.log[1535:TRDDigitizer]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/49}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/48}
./sim-challenge.log[1477:SimReader]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/49}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/48}
./sim-challenge.log[1622:TPCDigitizer_1]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/49}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/37}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/38}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/40}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/42}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/43}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/45}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/46}
./sim-challenge.log[1448:internal-dpl-clock]: [ERROR] Found duplicate input binding with different spec.:collisioncontext {SIM/COLLISIONCONTEXT/47}
[0 more errors; see full log]

Full log here.