Switch to the new Roo message parser #7135

Job	Run time
check-translations	51s
compile	1m 26s
test-extension (windows-latest)	3m 45s
knip	54s
test-extension (ubuntu-latest)	2m 50s
test-webview (ubuntu-latest)	1m 5s
test-webview (windows-latest)	2m 51s
check-openrouter-api-key	4s
integration-test	1m 49s
unit-test	3s
	15m 38s

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