QA: Improve test coverage

[LofoWalker]

No description provided.

[Copilot]

Pull request overview

Adds new unit/integration tests to increase coverage across security utilities, OAuth state handling, exception mappers, and a few domain value objects; also updates/cleans up test-related documentation.

Changes:

• Add tests for JWT token service, bcrypt password hasher, OAuth state service, exception mappers, and invitation/membership IDs/tokens.
• Add test-suite documentation under apps/api/src/test/README.md.
• Remove the prior PR review analysis document and trim/update Copilot-Processing.md.

Reviewed changes

Copilot reviewed 8 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
apps/api/src/test/java/com/upkeep/infrastructure/adapter/out/security/JwtTokenServiceTest.java	Adds coverage for access/refresh token generation, validation, refresh error cases, and revocation.
apps/api/src/test/java/com/upkeep/infrastructure/adapter/out/security/BcryptPasswordHasherTest.java	Adds unit tests for bcrypt hashing and verification.
apps/api/src/test/java/com/upkeep/infrastructure/adapter/out/oauth/InMemoryOAuthStateServiceTest.java	Adds unit tests for OAuth state generation/consumption behavior.
apps/api/src/test/java/com/upkeep/infrastructure/adapter/in/rest/common/exception/GlobalExceptionMapperTest.java	Adds tests validating status/error-code mapping for many domain exceptions.
apps/api/src/test/java/com/upkeep/infrastructure/adapter/in/rest/common/exception/ConstraintViolationExceptionMapperTest.java	Adds tests for Bean Validation exception mapping to API errors.
apps/api/src/test/java/com/upkeep/domain/model/membership/MembershipIdTest.java	Adds unit tests for MembershipId generation and parsing.
apps/api/src/test/java/com/upkeep/domain/model/invitation/InvitationTokenTest.java	Adds unit tests for InvitationToken generation and validation.
apps/api/src/test/java/com/upkeep/domain/model/invitation/InvitationIdTest.java	Adds unit tests for InvitationId generation and parsing.
apps/api/src/test/README.md	Documents test structure and how to run tests/coverage.
PR-13-Review-Analysis.md	Removes prior PR-review analysis document from the repo.
Copilot-Processing.md	Updates the process log/status content; includes a note suggesting the file should be deleted after review.

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