[ALICE3] Use A3 geo provider in OTF

[njacazio]

No description provided.

[github-actions]

O2 linter results: ❌ 52 errors, ⚠️ 151 warnings, 🔕 0 disabled

[njacazio]

needs #14276

[njacazio]

@jesgum discussin with @lhusova we believe it's better to provide the idx of the smearer at collision level. Also the configuration has now been provided with a geometry container. All geometries should be provided from configuration files available at runtime. The tracker for primaries is now the same as the one for the secondaries. The overlap between LUTs should be handled in the memory.

[alibuild]

Auto-approving on behalf of @njacazio.

[alibuild]

Error while checking build/O2Physics/o2 for 8d73ed2 at 2025-12-24 18:58:

## sw/BUILD/O2Physics-latest/log
CMake Error at cmake/O2PhysicsAddExecutable.cmake:113 (add_executable):

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for 10bbab2 at 2025-12-24 20:32:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/14272-slc9_x86-64/0/ALICE3/TableProducer/OTF/onTheFlyTrackerPid.cxx:437:15: error: unused variable 'nGeometries' [-Werror=unused-variable]
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Auto-approving on behalf of @njacazio.