[DAQ] SFB mode detection of run end flag (15_1_X backport)

[smorovic]

PR description:

Adding detection of run-end flag set by SFB RU in case of run blocked, out of sync and subsequent end of run which closes files without complete fragment content.
Instead of throwing exception in CMSSW, the process ends run and hltd will take care of closing the lumisection with processed events.
It reused FRD file header V2 used already in L1 Scouting. Data type filed is reused, as L1 Scouting used only values 0-32. Here, value of 0xffff is used for the flag.

PR validation:

Tested with SFB in DAQ3VAL system.
A tect script is also added to the source.

If this PR is a backport please specify the original PR and why you need to backport that PR. If this PR will be backported please specify to which release cycle the backport is meant for:

Backport of #49099 to 15_1_X
Reason for backport: improvement for SFB DAQ mode which is being tested in online HLT.

[cmsbuild]

A new Pull Request was created by @smorovic for CMSSW_15_1_X.

It involves the following packages:

• EventFilter/Utilities (daq)

@cmsbuild, @emeschi, @smorovic can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @fwyzard, @missirol this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

• Backported from [DAQ] SFB mode detection of run end flag #49099

[cmsbuild]

cms-bot internal usage

[smorovic]

backport of #49099

[smorovic]

@cmsbuild please test

[cmsbuild]

+1

Size: This PR adds an extra 76KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-596ca7/48540/summary.html
COMMIT: 797bbe9
CMSSW: CMSSW_15_1_X_2025-10-08-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/49100/48540/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 3 lines to the logs
• Reco comparison results: 6 differences found in the comparisons
• DQMHistoTests: Total files compared: 50
• DQMHistoTests: Total histograms compared: 4124047
• DQMHistoTests: Total failures: 32
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 4123995
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 49 files compared)
• Checked 215 log files, 184 edm output root files, 50 DQM output files
• TriggerResults: no differences found

[smorovic]

+daq

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_15_1_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_16_0_X is complete. This pull request will now be reviewed by the release team before it's merged. @ftenchini, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1