Fix jest config to exclude non-test files from test runs

Co-authored-by: indatawetrust <6845298+indatawetrust@users.noreply.github.com>

Author: Copilot

jest.config.js

@@ -1,7 +1,7 @@
 module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
-  testMatch: ['**/__tests__/**/*.ts', '**/?(*.)+(spec|test).ts'],
+  testMatch: ['**/__tests__/**/*.test.ts', '**/?(*.)+(spec|test).ts'],
   moduleFileExtensions: ['ts', 'js', 'json', 'node'],
   collectCoverage: true,
   coverageDirectory: 'coverage',