feat: add ReadabilityWithOptions for DOM cleanup before extraction

Sites with infinite scroll (e.g. The Verge) load additional articles
into the DOM, which get included in readability extraction. Add
ReadabilityOptions.RemoveSelectors to strip elements by CSS selector
before parsing, avoiding the need to reimplement the readability
pipeline downstream.

Closes #60

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

go.mod

@@ -8,10 +8,11 @@ require (
 	github.com/go-shiori/go-readability v0.0.0-20250217085726-9f5bf5ca7612
 	github.com/playwright-community/playwright-go v0.5200.0
 	github.com/urfave/cli/v3 v3.0.0-beta1
-	golang.org/x/text v0.29.0
+	golang.org/x/text v0.31.0
 )
 
 require (
+	github.com/PuerkitoBio/goquery v1.11.0 // indirect
 	github.com/andybalholm/cascadia v1.3.3 // indirect
 	github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de // indirect
 	github.com/deckarep/golang-set/v2 v2.8.0 // indirect
@@ -19,5 +20,5 @@ require (
 	github.com/go-shiori/dom v0.0.0-20230515143342-73569d674e1c // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f // indirect
-	golang.org/x/net v0.44.0 // indirect
+	golang.org/x/net v0.47.0 // indirect
 )