Add FHIR Pseudonymizer Integration

[trobanga]

Summary

• Integrates FHIR Pseudonymizer as an alternative deidentificator for CDA and RDA
• TCA exposes Vfps-compatible endpoints for transport ID generation and resolution
• Implements transport ID architecture: CDA receives tIDs, RDA resolves tIDs→sIDs
• Clinical data never flows through TCA (only identifiers), enhancing data isolation

Components Added

Trust Center Agent (TCA):

• CdAgentFhirPseudonymizerController - /api/v2/cd-agent/fhir/$create-pseudonym
• RdAgentFhirPseudonymizerController - /api/v2/rd-agent/fhir/$create-pseudonym
• TransportIdService - SecureRandom tID generation, Redis RMapCache storage
• BackendAdapterFactory + adapters (gPAS functional, Vfps/entici stubs)

Clinical Domain Agent (CDA):

• FhirPseudonymizerStep + FhirPseudonymizerStepFactory
• Example project configuration

Research Domain Agent (RDA):

• FhirPseudonymizerStep + FhirPseudonymizerStepFactory
• Example project configuration

Test Plan

• Run mvn clean verify - all tests pass
• Review integration tests for TCA controllers
• Verify example YAML configurations are valid
• Manual E2E test with docker-compose (optional)

[codecov]

Codecov Report

❌ Patch coverage is 94.95798% with 30 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.20%. Comparing base (6a84300) to head (1f7b2ad).

Files with missing lines	Patch %	Lines
...iguration/EnticiDeIdentificationConfiguration.java	15.38%	11 Missing ⚠️
...nfiguration/VfpsDeIdentificationConfiguration.java	15.38%	11 Missing ⚠️
...ts/tca/deidentification/VfpsParameterResponse.java	53.84%	6 Missing ⚠️
...e/smith/fts/tca/deidentification/EnticiClient.java	95.12%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1337      +/-   ##
============================================
- Coverage     99.27%   98.20%   -1.08%     
- Complexity      493      676     +183     
============================================
  Files           124      147      +23     
  Lines          1803     2398     +595     
  Branches         47       70      +23     
============================================
+ Hits           1790     2355     +565     
- Misses            2       31      +29     
- Partials         11       12       +1     

Files with missing lines	Coverage Δ
...re/smith/fts/cda/impl/FhirPseudonymizerConfig.java	100.00% <100.00%> (ø)
...care/smith/fts/cda/impl/FhirPseudonymizerStep.java	100.00% <100.00%> (ø)
...ith/fts/cda/impl/FhirPseudonymizerStepFactory.java	100.00% <100.00%> (ø)
...re/smith/fts/rda/impl/FhirPseudonymizerConfig.java	100.00% <100.00%> (ø)
...care/smith/fts/rda/impl/FhirPseudonymizerStep.java	100.00% <100.00%> (ø)
...ith/fts/rda/impl/FhirPseudonymizerStepFactory.java	100.00% <100.00%> (ø)
...e/smith/fts/tca/adapters/EnticiBackendAdapter.java	100.00% <100.00%> (ø)
...are/smith/fts/tca/adapters/GpasBackendAdapter.java	100.00% <100.00%> (ø)
...are/smith/fts/tca/adapters/VfpsBackendAdapter.java	100.00% <100.00%> (ø)
...are/smith/fts/tca/config/BackendAdapterConfig.java	100.00% <100.00%> (ø)
... and 13 more

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