Handle OutputPage parser options API differences in FormatterBuilder

[Copilot]

Rendering local media values regressed on newer/variant MediaWiki deployments because FormatterBuilder called OutputPage::parserOptions() unconditionally, which is not available in all target versions. This caused entity page rendering to fail before formatting could proceed.

• Compatibility fix in parser options resolution

  • Replaced the direct RequestContext::getMain()->getOutput()->parserOptions() call with version-tolerant resolution logic.
  • FormatterBuilder now:
    1. uses OutputPage::parserOptions() when present,
    2. falls back to OutputPage::getParserOptions() when present,
    3. falls back to ParserOptions::newFromAnon() as a safe default.

• Scope and behavior

  • Change is isolated to src/Services/FormatterBuilder.php.
  • No functional change to formatter selection logic; only parser-options acquisition path was made resilient.

private function getParserOptions( OutputPage $outputPage ): ParserOptions {
	if ( method_exists( $outputPage, 'parserOptions' ) ) {
		return $outputPage->parserOptions();
	}

	if ( method_exists( $outputPage, 'getParserOptions' ) ) {
		return $outputPage->getParserOptions();
	}

	return ParserOptions::newFromAnon();
}