In src/__tests__/redaction.test.ts spanning lines 1 to 1466, the test file is
excessively large and monolithic, which hinders comprehension, maintenance, and
parallel test execution. To fix this, split the test file into multiple smaller,
thematic test files such as core.test.ts for core functionality, env.test.ts for
environment-based tests, logengine.test.ts for LogEngine integration, and others
as appropriate. Ensure each new file contains logically grouped tests, update
imports and test setup accordingly, and configure Jest to run these files in
parallel for improved speed and clearer failure reports.