- Implement fluent HTTP methods: get(), post(), put(), patch(), delete()
- Build URI matcher for static paths with PSR-7 ServerRequestInterface support
- Implement match() returning null for no match scenarios
- Implement matchOrFail() throwing NotFoundRouteException for missing routes
- Add path normalization (trailing slashes, leading slashes)
- Create NotFoundRouteException for global 404 handling
- Add comprehensive test coverage with 19 tests passing
All tests passing: 19 tests, 34 assertions
Closes milestone 2 from MILESTONES.md