4c2c3d5495
Enable monorepo support with CLI configuration: - Add PathsConfig struct with serde defaults for content, output, static, and templates directories - Add optional [paths] table to site.toml (backward compatible) - Add -c/--config <FILE> flag to specify config file path - Add -h/--help flag with usage information - Resolve all paths relative to config file location Users can now run multiple sites from a single repo: nrd-sh # uses ./site.toml nrd-sh -c sites/blog/site.toml # looks in sites/blog/ Includes 2 new unit tests for path configuration parsing.