Provide configuration descriptions to MTD local reconstruction modules

[mmusich]

PR description:

The goal of this PR is to update MTDUncalibratedRecHitProducer and MTDRecHitProducer in order to make them fully suitable for the HLT usage, by adding a fillDescriptions method.
As these module make use of plugin factories, additional changes following the line of these instructions were added.
The missing configuration validation was spotted thanks to this script run on CMSSW_20_1_X_2026-06-21-0000.

PR validation:

I've run successfully:

• runTheMatrix.py -l 34434.7522 -t 4 -j 8 -i all --ibeos in CMSSW_20_1_X_2026-06-21-0000. (as introduced at Implement MIP Timing Detector reconstruction sequence for Phase-2 HLT  #51170)
• The script testConfDBParsing_Phase2.py does not flag any other MTD modules. The others are long-standing and already reported at Modules not auto-generating a cfi file in cfi-python currently present in the HLT menu (Run 3 and Phase 2) #47275.

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:

Not a backport.

[mmusich]

test parameters:

• workflows = ph2_hlt

[mmusich]

type ngt

[cmsbuild]

cms-bot internal usage

[mmusich]

@cmsbuild, please test

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-51273/49872

[cmsbuild]

A new Pull Request was created by @mmusich for master.

It involves the following packages:

• RecoLocalFastTime/FTLCommonAlgos (reconstruction)
• RecoLocalFastTime/FTLRecProducers (reconstruction)

@Moanwar, @jfernan2, @mandrenguyen, @srimanob can you please review it and eventually sign? Thanks.
@fabiocos, @martinamalberti 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

[cmsbuild]

+1

Size: This PR adds an extra 28KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e44ad9/54161/summary.html
COMMIT: 159f9d9
CMSSW: CMSSW_20_1_X_2026-06-21-0000/el9_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/51273/54161/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 59
• DQMHistoTests: Total histograms compared: 3872067
• DQMHistoTests: Total failures: 68
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3871981
• DQMHistoTests: Total skipped: 18
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 58 files compared)
• Checked 249 log files, 203 edm output root files, 59 DQM output files

[jfernan2]

+1
Thanks @mmusich

[cmsbuild]

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

[mandrenguyen]

+1