[Infrastructure,Tools,Common,Tutorial,PWGDQ,PWGHF,PWGLF] [WIP] [ML] Fix for memory issue in ML headers

[ChSonnabend]

This PR fixes the dangling float* pointers and replaces it with a std::vector allocation.

[github-actions]

O2 linter results: ❌ 357 errors, ⚠️ 131 warnings, 🔕 0 disabled

[ChSonnabend]

This still needs to be tested but should fix a memory issue spotted by @mhemmer-cern and discussed with @fmazzasc
Please do not merge yet.

[alibuild]

Error while checking build/O2Physics/o2 for be8a4a7 at 2026-09-08 20:34:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/Tools/ML/MlResponse.h:232:85: error: cannot convert 'std::vector<float>' to 'float*' in initialization
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for be8a4a7 at 2026-09-08 20:45:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/Tools/ML/MlResponse.h:232:85: error: cannot convert 'std::vector<float>' to 'float*' in initialization
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for be8a4a7 at 2026-09-08 21:04:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/Tools/ML/MlResponse.h:232:85: error: cannot convert 'std::vector<float>' to 'float*' in initialization
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for a31fa89 at 2026-09-18 07:23:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc10_x86-64-slc10_x86-64/0/Common/Tools/PID/pidTPCModule.h:612:82: error: 'class std::unique_ptr<float []>' has no member named 'begin'
ninja: build stopped: subcommand failed.

Full log here.