chore: add yaml dependency and bump version to 0.5.0

Add gopkg.in/yaml.v3 v3.0.1 for YAML output format support.
Bump version from 0.1.0 to 0.5.0 for the feature release.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: grokify

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/grokify/oscompat v0.3.0
 	golang.org/x/crypto v0.52.0
 	golang.org/x/term v0.43.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require golang.org/x/sys v0.45.0 // indirect

go.sum

@@ -6,3 +6,7 @@ golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
 golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/term v0.43.0 h1:S4RLU2sB31O/NCl+zFN9Aru9A/Cq2aqKpTZJ6B+DwT4=
 golang.org/x/term v0.43.0/go.mod h1:lrhlHNdQJHO+1qVYiHfFKVuVioJIheAc3fBSMFYEIsk=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=