- create detector interface and registry for extensibility
- extract detectors to separate files: backend.go, frontend.go, cms.go, meta.go
- reduce detect.go from 785 lines to 178 lines (pure orchestrator)
- export VersionMatch and ExtractVersionOptimized for detector use
- create result.go with NewFrameworkResult and WithVulnerabilities helpers
- add url validation to New() for early error detection
- add sif_test.go with main package tests
- update detect_test.go to use external test package pattern
move version extraction patterns to version.go and compile them at init
time instead of recompiling on every check. this significantly improves
framework detection performance.
- add version.go with pre-compiled regex patterns for all frameworks
- update detect.go to use extractVersionOptimized
- remove duplicate extractVersionWithConfidence and isValidVersion functions
- add io.LimitReader to prevent memory exhaustion on large responses
- update tests to use the optimized version extraction
