v0.1.0 - Initial Release

Full Go time.ParseDuration compatibility for Python

Features:

• Parse Go-style duration strings: 1m, 2h, 2h30m, -8h
• Support all Go time units: ns, us, µs, ms, s, m, h
• Fractional numbers: 1.5h, 30.918s
• Edge cases: 0, +1h, 1h0m0s
• 32 comprehensive tests
• README-based testing via make test