Tests ad-tagging on arbitrary node elements via DOM.adRelatedStateUpdated and DOM.Node.isAdRelated

--- Testing DOM.adRelatedStateUpdated Event Dispatch ---
Event Triggered: DOM.adRelatedStateUpdated
Event nodeId matches target: true
Event isAdRelated: true
Event filterlistRule contains 'ad-image.png': true

--- Testing Static Serialization ---
Node localName: span
Node isAdRelated (via describeNode): true
Node filterlistRule contains 'ad-image.png': true

--- Testing Script Ancestry ---
Node localName: img
Node isAdRelated: true
Has filterlistRule: false
Has adScriptAncestry: true
Ancestry chain length > 0: true
rootScriptFilterlistRule contains 'insert-image.js': true