- config.rs: NoxaConfig::load() now exits with an error when an explicit path
(via --config arg or NOXA_CONFIG env var) does not exist; implicit ./config.json
missing still silently returns default
- Updated test: test_load_missing_file_returns_default replaced with
test_load_implicit_missing_file_returns_default (tests None path, not explicit)
- env.example: replaced fat legacy content with slim secrets-only template
matching .env.example; deleted redundant .env.example
- README.md: replaced bare env-var table with full Configuration section
covering config.json workflow, precedence, NOXA_CONFIG override, and bool
flag limitation