Fix read_files normalized path results #742

Job	Run time
build-and-smoke-freebuff-windows	3m 43s
build-freebuff	1m 13s
e2e-startup	1m 2s
e2e-terminal-command	52s
e2e-agent-startup	2m 7s
e2e-version	1m 8s
e2e-code-edit	58s
e2e-help-command	1m 9s
e2e-ads-behavior	1m 9s
e2e-slash-commands	51s
	14m 12s

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