[PWGLF] Added additional histograms for correlated background in k892hadronphoton

[Oussama3030]

Changes made:

• Added topology histograms in the channel K*892 -> Kaon Pion
• Added a configurable to rotate the photon in k892hadronphotonbkg.cxx

• small additional changes

@gianniliveraro for your information!

[github-actions]

O2 linter results: ❌ 141 errors, ⚠️ 52 warnings, 🔕 0 disabled

[dmallick2]

@Oussama3030 please fix o2linter a few o2linter issue related to PWGLF/Tasks/Resonances/k892hadronphoton.cxx, there is other o2linter issue also present from other tasks that can be ignored for time being, I will request to fix those related to analysis task.

[alibuild]

Error while checking build/O2Physics/code-check for 1958772 at 2026-07-07 17:33:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 12 errors and 154 warnings.'
Found 12 errors and 154 warnings.
++ [[ 12 -gt 0 ]]
++ cat /sw/BUILD/6c170103363b7b2b7c7999fbfd8ba543509f0379/O2Physics-code-check/errors.txt
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:66:8: error: constructor does not initialize these fields: ccdb [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:499:7: error: do not use 'else' after 'return' [readability-else-after-return,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:74:8: error: constructor does not initialize these fields: ccdb [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:245:9: error: implicit conversion 'bool' -> 'int' [readability-implicit-bool-conversion,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:245:29: error: implicit conversion 'bool' -> 'int' [readability-implicit-bool-conversion,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:745:5: error: redundant return statement at the end of a function with a void return type [readability-redundant-control-flow,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:838:22: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:872:22: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:900:41: error: equality comparison with extraneous parentheses [clang-diagnostic-parentheses-equality,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:940:22: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:1159:22: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
PWGLF/Tasks/Resonances/k892hadronphoton.cxx:1164:22: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
++ [[ 154 -gt 0 ]]
++ cat /sw/BUILD/6c170103363b7b2b7c7999fbfd8ba543509f0379/O2Physics-code-check/warnings.txt
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:240:51: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:244:51: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:268:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:273:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:278:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:283:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:288:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:293:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:298:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:303:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:308:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:313:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:318:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:323:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:328:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:333:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:338:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:343:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:349:21: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:354:21: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:361:21: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:366:21: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:375:31: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:385:19: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:405:101: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:411:70: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:418:85: warning: statement should be inside braces [readability-braces-around-statements]
PWGLF/Tasks/Resonances/k892hadronphotonBkg.cxx:422:108: warning: statement should be inside braces [readability-braces-around-statements]
[0 more errors; see full log]

Full log here.