pth 0.38.0

Collection of algorithms and structures to handle paths properly.
Documentation
# Doc Entities

## Master Doc Entities Table

| Type | Purpose | Master File | Instances |
|------|---------|-------------|----------:|
| `api/` | Document public API — free functions, type wrappers, and conversion traits | [api/readme.md]api/readme.md | 3 |
| `feature/` | Navigate feature artifacts across source, tests, and docs | [feature/readme.md]feature/readme.md | 2 |
| `invariant/` | Document correctness invariants — always-hold structural properties | [invariant/readme.md]invariant/readme.md | 2 |

## Master Doc Instances Table

| Entity | ID | Name | File |
|--------|-----|------|------|
| api | 001 | Path Functions | [api/001_path_functions_api.md]api/001_path_functions_api.md |
| api | 002 | Type Wrappers | [api/002_type_wrappers_api.md]api/002_type_wrappers_api.md |
| api | 003 | Conversion Traits | [api/003_conversion_traits_api.md]api/003_conversion_traits_api.md |
| feature | 001 | Path Normalization | [feature/001_path_normalization.md]feature/001_path_normalization.md |
| feature | 002 | Path Type System | [feature/002_path_type_system.md]feature/002_path_type_system.md |
| invariant | 001 | Zero Dependencies | [invariant/001_zero_dependencies.md]invariant/001_zero_dependencies.md |
| invariant | 002 | Fixed Output Format | [invariant/002_fixed_output_format.md]invariant/002_fixed_output_format.md |