feat: add subpath route support #60

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Final Result: Bugbot completed review and found 1 potential issue.

Request ID: serverGenReqId_91c165cb-1d08-48f1-bb59-707354b9d2d9

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{Reviewed by Cursor Bugbot for commit 143d976. Configure here.}