[rust-renderer] Standalone preprocessing (#36718)

Signed-off-by: Sage Ahrac <sagiahrak@gmail.com>
Co-authored-by: Shangming Cai <csmthu@gmail.com>
Co-authored-by: Liangsheng Yin <hnyls2002@gmail.com>
Co-authored-by: Rain Jiang <96632942+rainj-me@users.noreply.github.com>

rust/Cargo.toml

@@ -3,6 +3,7 @@ resolver = "3"
 members = [
     "sglang-grpc",
     "sglang-mm",
+    "sglang-renderer",
     "sglang-server"
 ]
 exclude = ["sglang-radix-tree"]