[frontend/backend] feat: use healthchecks to manage inject readyness (#4263)

[gabriel-peze]

Proposed changes

• Use healthchecks to evaluate inject readyness and add more details into inject missing content state
• Improve code by removing complex methods from DTOs and Entities

Testing Instructions

1. Check for inject readyness state and details into scenarios injects, should not be changed but should have more details into the scenario readyness tooltip.

Related issues

• Closes Improve inject readiness with healthchecks #4263

[codecov]

Codecov Report

❌ Patch coverage is 88.25503% with 35 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.07%. Comparing base (0752cd6) to head (b94e2fd).

Files with missing lines	Patch %	Lines
...io/openaev/healthcheck/utils/HealthCheckUtils.java	87.50%	7 Missing and 11 partials ⚠️
...n/java/io/openaev/service/InjectImportService.java	0.00%	7 Missing ⚠️
...rc/main/java/io/openaev/rest/inject/InjectApi.java	0.00%	4 Missing ⚠️
...va/io/openaev/rest/inject/SimulationInjectApi.java	0.00%	2 Missing ⚠️
...va/io/openaev/rest/inject/output/InjectOutput.java	50.00%	0 Missing and 2 partials ⚠️
...n/java/io/openaev/healthcheck/dto/HealthCheck.java	96.15%	1 Missing ⚠️
...io/openaev/scheduler/jobs/InjectsExecutionJob.java	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@                  Coverage Diff                  @@
##             release/current    #4277      +/-   ##
=====================================================
+ Coverage              49.51%   50.07%   +0.55%     
- Complexity              3588     3635      +47     
=====================================================
  Files                    891      890       -1     
  Lines                  26508    26635     +127     
  Branches                1979     1992      +13     
=====================================================
+ Hits                   13126    13337     +211     
+ Misses                 12590    12496      -94     
- Partials                 792      802      +10     

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[RomuDeuxfois]

Haven’t tested that part yet — just doing some code review to understand the mechanisms in place.

[gabriel-peze]

TO DO :

• Rollback InjectOutput DTO but keep isReady and healthchecks
• Remove InjectOutput from InjectApi returns, for search (who need isReady info) use InjectOutput as return
• If isReady is necessary in Java code, simply check for injectService.runContentCheck result
• Add a comment to scenario checks, why we have to do all the runInjectsChecksFor

[RomuDeuxfois]

@gabriel-peze can I re read this one ?