feat: reqstool-regression-java — Java regression test wrapper

[jimisola]

Context

Depends on #324 (variant investigation) and #325 (SSOT requirements repo).

A thin Java wrapper repo that imports requirements from reqstool-regression via git location and adds Java-specific artifacts. Mirror structure of reqstool-regression-python (#326).

Proposed structure

A new repo reqstool/reqstool-regression-java containing:

• Imports reqstool-regression via git location
• 1–2 local requirements + SVCs to confirm local parsing works alongside imports
• Java source with @Requirements / @SVCs annotations (using reqstool-java-annotations)
• Maven surefire/failsafe JUnit XML test results
• MVRs for manual-test verification cases
• annotations.yml mapping requirement/SVC IDs to Java FQNs

Key design decisions

• Identical imported requirement IDs as the Python counterpart (feat: reqstool-regression-python — Python regression test wrapper #326) — enables cross-language regression comparison
• Uses maven as build tool, java as language in reqstool_config.yml
• Test results include all outcomes: pass, fail, skip, missing

Acceptance criteria

• New repo reqstool/reqstool-regression-java created
• Imports from reqstool-regression work correctly
• reqstool status and reqstool report produce valid output
• All enum coverage verified (significance, lifecycle, categories, verification types)
• CI runs reqstool status as a validation step