[Radix Cache] Add Rust TreeCore backend with shared parity tests (#32710)

Co-authored-by: alphabetc1 <2508695655@qq.com>
Co-authored-by: ispobock <ispobaoke@gmail.com>

python/pyproject.toml

@@ -1,5 +1,11 @@
 [build-system]
-requires = ["setuptools>=61.0", "setuptools-rust>=1.10", "setuptools-scm>=8.0", "wheel"]
+requires = [
+  "setuptools>=61.0",
+  "setuptools-rust>=1.11",
+  "setuptools-scm>=8.0",
+  "torch==2.13.0",
+  "wheel",
+]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -214,6 +220,7 @@ killall_sglang = "sglang.cli.killall:main"
 "sglang" = [
   "kernels/aot/*",
   "kernels/aot/**/*",
+  "srt/mem_cache/rust_tree_core/mem_cache_inspection*.so",
 ]
 
 [tool.setuptools.packages.find]
@@ -247,8 +254,9 @@ git_describe_command = ["python3", "scripts/release/get_version_tag.py"]
 # Allow editable installs even when .git metadata is not available.
 fallback_version = "0.0.0.dev0"
 
-# Rust extension modules are auto-discovered by setup.py from the cargo
-# workspace in ../rust ([package.metadata.sglang] python-module in each crate).
+# Rust extension modules are auto-discovered by setup.py from the Cargo
+# workspace in ../rust and its declared extension manifests
+# ([package.metadata.sglang] python-module in each crate).
 # This CUDA pyproject builds all of them; platform variants restrict the set
 # via [tool.sglang] rust-extensions (see pyproject_other.toml).