1: infrastructure defaultprops

[camd]

I split PR #9124 into 3 PRs because the set of changes was becoming too large and convoluted. So I will close that PR in lieu of these 3.

PR 1: camd/pr1-infrastructure-defaultprops

• Upgrades packages and pnpm version
• Fixes React defaultProps deprecation warnings
• Fixes React console warnings for duplicate keys and null props
• Infrastructure/tooling changes

PR 2: camd/pr2-test-coverage (based on PR 1)

• Adds comprehensive unit tests for RSPack migration
• Improves test coverage in key areas

PR 3: camd/pr3-job-selection-fix (based on PR 2)

• Converts class components to functional (Push, PushHeader, PushJobs, etc.)
• Fixes the job selection race condition
• Adds Zustand migration notes documentation
• Tests for useJobButtonRegistry / useDebounce

Branch Relationships

  master                                                                                                                                                                               
    └── camd/pr1-infrastructure-defaultprops                                                                                                                                           
          └── camd/pr2-test-coverage                                                                                                                                                   
                └── camd/pr3-job-selection-fix                                                                                                                                         

Merge Order

1. Merge PR 1 first
2. Rebase PR 2 on master, then merge
3. Rebase PR 3 on master, then merge

[codecov-commenter]

Codecov Report

❌ Patch coverage is 43.22034% with 134 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.82%. Comparing base (fac1470) to head (34cd1c5).

Files with missing lines	Patch %	Lines
ui/intermittent-failures/Layout.jsx	0.00%	10 Missing ⚠️
ui/shared/RevisionInformation.jsx	0.00%	9 Missing ⚠️
ui/job-view/details/summary/SummaryPanel.jsx	0.00%	7 Missing ⚠️
ui/intermittent-failures/BugDetailsView.jsx	0.00%	5 Missing ⚠️
ui/perfherder/alerts/AlertTable.jsx	44.44%	5 Missing ⚠️
ui/shared/FilterControls.jsx	0.00%	5 Missing ⚠️
ui/job-view/details/DetailsPanel.jsx	75.00%	4 Missing ⚠️
ui/perfherder/graphs/GraphsContainer.jsx	42.85%	4 Missing ⚠️
ui/infra-compare/InfraCompareTableControls.jsx	0.00%	3 Missing ⚠️
ui/intermittent-failures/MainView.jsx	0.00%	3 Missing ⚠️
... and 44 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9178      +/-   ##
==========================================
- Coverage   82.05%   81.82%   -0.24%     
==========================================
  Files         602      602              
  Lines       33794    33880      +86     
  Branches     3017     3206     +189     
==========================================
- Hits        27731    27722       -9     
- Misses       5938     6033      +95     
  Partials      125      125              

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