refactor: Remove jest.real.config.cjs configuration file

jest.real.config.cjs

@@ -1,62 +0,0 @@
-module.exports = {
-  preset: 'ts-jest/presets/default-esm',
-  testEnvironment: 'node',
-  roots: ['<rootDir>/tests/real'],
-  testMatch: ['**/real/**/*.test.ts'],
-  
-  // ES Module configuration
-  extensionsToTreatAsEsm: ['.ts'],
-  
-  transform: {
-    '^.+\\.ts$': [
-      'ts-jest',
-      {
-        useESM: true,
-      },
-    ],
-  },
-  collectCoverageFrom: ['src/**/*.ts', '!src/**/*.d.ts', '!src/**/index.ts', '!src/examples/**'],
-  coverageDirectory: 'coverage-real',
-  coverageReporters: ['text', 'lcov', 'html'],
-
-  // Extended timeouts for real network operations
-  testTimeout: 180000, // 3 minutes per test
-
-  // Run tests serially to avoid port conflicts and resource contention
-  maxWorkers: 1,
-
-  // Setup and teardown
-  globalSetup: '<rootDir>/tests/real/jest.global-setup.cjs',
-  globalTeardown: '<rootDir>/tests/real/jest.global-teardown.cjs',
-
-  // Environment variables for real tests
-  setupFilesAfterEnv: ['<rootDir>/tests/real/jest.setup.ts'],
-
-  // Disable watch mode (real tests are too slow)
-  watchman: false,
-
-  // Clear mocks between tests
-  clearMocks: true,
-  restoreMocks: true,
-
-  // Verbose output for debugging
-  verbose: true,
-
-  // Fail fast on first error (saves time with slow tests)
-  bail: 1,
-
-  // ES Module support
-  extensionsToTreatAsEsm: ['.ts'],
-
-  // Transform ES modules - more comprehensive pattern
-  transformIgnorePatterns: [
-    'node_modules/(?!(helia|@helia|@orbitdb|@libp2p|@chainsafe|@multiformats|multiformats|datastore-fs|blockstore-fs|libp2p)/)',
-  ],
-
-  // Module resolution for ES modules
-  resolver: undefined,
-  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],  // Module name mapping to handle ES modules
-  moduleNameMapper: {
-    '^(\\.{1,2}/.*)\\.js$': '$1',
-  },
-};