Add unit tests for the new ProjectConf module covering:
- Basic string and list value retrieval (get_str(), get_str_or_none(),
get_list(), get_list_or_none())
- Quoted values with preserved spaces and comment delimiters
- Inline comments outside quotes
- Comma-separated lists with quoted commas
- Line continuations
- Multiple sections
- Error cases: empty key, missing key/section, malformed sections,
unfinished continuations, unclosed quotes
- Error class is a subclass of ValueError
Also include a Makefile for running tests via `make test`.
Assisted-by: unsloth/Qwen3.6-35B-A3B-GGUF:IQ4_NL and pi.dev
Signed-off-by: Jan Lindemann <jan@janware.com>
2ca66e34ba