src/extension/envExtApi.ts Added comprehensive API type definitions for the new Python Environments extension (1289 lines) src/extension/common/python.ts Refactored to support dual API paths with conditional logic based on useEnvExtension() src/extension/common/legacyPython.ts Extracted legacy Python extension API implementation from python.ts src/extension/common/utilities.ts Added useEnvExtension() function to determine which API to use at runtime src/extension/debugger/adapter/factory.ts Updated to use new PythonEnvironment type and added version parsing logic src/extension/debugger/configuration/resolvers/base.ts Enhanced to resolve interpreter from program file when appropriate src/extension/debugger/configuration/debugConfigurationService.ts Added interpreter resolution after variable substitution src/extension/common/application/commands/reportIssueCommand.ts Updated to handle both environment API return types src/test/unittest/common/pythonTrue.unit.test.ts New test suite for new environment extension path src/test/unittest/common/pythonFalse.unit.test.ts New test suite for legacy extension path src/test/unittest/common/helpers.ts Added buildPythonEnvironment() test helper function src/test/unittest/adapter/factory.unit.test.ts Updated tests to use new PythonEnvironment type src/test/unittest/configuration/resolvers/launch.unit.test.ts Updated to handle both API return types src/test/unittest/common/application/commands/reportIssueCommand.unit.test.ts Updated mock interpreter structure