dev.atfs.repo.uploadFile

Upload a file to be served by this atfs instance over IPFS and plain HTTP. Intentionally fully wire-compatible with com.atproto.repo.uploadBlob — same binary request body, same inter-service auth mechanism, same response shape — so any uploadBlob client works against this endpoint unchanged, by switching only the NSID in the request path and the `lxm` claim of its auth token. This method is also mounted, unmodified, as com.atproto.repo.uploadBlob itself, for callers that have no reason to know atfs has its own name for it; a token minted for one NSID is rejected on the other's path. Requires auth (a caller's own inter-service auth JWT, signed by its account's signing key); restricted to the instance's configured account allowlist (see dev.atfs.server's accounts field).