[Router] Add composable scoring and eligibility policies (#37731)

Co-authored-by: inkcherry <mingzhi.liu@amd.com>

scripts/ci/cuda/ci_install_dependency.sh

@@ -324,6 +324,20 @@ setup_cargo_cache() {
     mark_step_done "${FUNCNAME[0]}"
 }
 
+invalidate_torch_rust_cache() {
+    if [ "${SGLANG_BUILD_RUST_EXTS:-}" = "none" ]; then
+        mark_step_done "${FUNCNAME[0]}"
+        return
+    fi
+
+    # uv's editable build uses a temporary torch path. Rebuild these units
+    # under the lock so Cargo does not reuse that path in a later job.
+    cargo clean --release --manifest-path "${REPO_ROOT}/rust/sglang-radix-tree/Cargo.toml" \
+        -p torch-sys -p sglang-radix-tree
+
+    mark_step_done "${FUNCNAME[0]}"
+}
+
 release_cargo_cache_lock() {
     if [ "${CARGO_TARGET_LOCK_HELD:-0}" = "1" ]; then
         flock --unlock 9
@@ -904,6 +918,7 @@ main() {
     install_pytorch_stack
     install_cuda12_deepep_wheel
     setup_cargo_cache
+    invalidate_torch_rust_cache
     install_sglang
     release_cargo_cache_lock
     # Diffusion B200 CI imports torch inside install_sglang_kernel after removing