Add shared-engine calibration-only relevance diagnostics

tools/relevance-eval/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "searchi-relevance-eval"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[workspace]
+
+[dependencies]
+anyhow = "1"
+serde_json = "1"
+sha2 = "0.10"
+searchi-core = { path = "../../crates/searchi-core" }
+searchi-service = { path = "../../crates/searchi-service" }
+tempfile = "3"