Enable parallel testing in CI and add per-worker test setup

[MrAdder]

fixes #479
also includes PR #1798
Summary:

• Add CI step to generate Passport keys (php artisan passport:keys --force) so tests can run reliably in CI.
• Switch CI test run to parallel: php artisan test --parallel --processes=4 --recreate-databases --coverage-clover=coverage.xml.
• Add a ParallelTestingServiceProvider to set up per-worker databases and create a personal Passport client for each worker.
• Add .nvmrc (Node 24) and add brianium/paratest + bump PHPUnit in composer.json.
• Composer lock and JS lockfiles updated to reflect dependency upgrades.

Files touched (high level):

• .github/workflows/test.yml
• app/Providers/ParallelTestingServiceProvider.php (new)
• .nvmrc (new)
• composer.json
• composer.lock
• (lockfile updates for JS deps)

Testing / Notes:

1. CI now generates Passport keys once (prevents file races across workers).
2. Local run to try parallel tests:

   composer install
   php artisan passport:keys --force
   php artisan test --parallel --processes=4 --recreate-databases
   
   
   
   
   
   

New

Old

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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