* tweaks to linter.py to prep for typescript linting (not implemented yet)
* fix 2 linter unit tests
* simpler basic_lint output; updated unit test
* fix default gpt-4o model name in aider default config
* linter.py: use tsc (typescript compiler) for linting; added more tests
* make typescript linting be more forgiving
* use npx instead of npm to install typescript in Dockerfile.j2
* Fix merge mistake
* removed npx call from Dockerfile.j2
* fix run_cmd to use code parameter; replace regex in test
* fix test_lint_file_fail_typescript to ignore leading path characters
* added TODO comment to extract_error_line_from
* fixed bug in ts_lint with wrong line number parsing
