Validate shared-engine lexical performance harness on Windows

tools/scale-eval/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "searchi-scale-eval"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+# Diagnostic only: intentionally outside the product workspace.
+[workspace]
+
+[dependencies]
+anyhow = "1"
+rusqlite = { version = "0.32", features = ["bundled"] }
+searchi-core = { path = "../../crates/searchi-core" }
+serde_json = "1"
+sha2 = "0.10"
+tempfile = "3"