pick/builder* is not windows compatible #1
Description
Tests are failing on windows os in the github runner. Right now we use strictly posix pathing in all of the builder file operations and this is the source of our issues. We can probably get claude to fix this with a hack but it would be better to make it clearer in the FileEntry, ParsedPath, and Route data in builder where we are referring to urls versus file paths. I think there are likely places where a manual / or \ is being joined in on accident. It's possible that the Deno.bundle outputs are also not os specific. Ugh, standards.