build: add jarvis-cli/build.rs mirroring jarvis-app

Resolves LNK1181 by emitting rustc-link-search for lib/windows/amd64
the same way jarvis-app does.

crates/jarvis-cli/build.rs

@@ -0,0 +1,7 @@
+fn main() {
+    let manifest_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap();
+    let lib_path = std::path::Path::new(&manifest_dir)
+        .join("..\\..\\lib\\windows\\amd64");
+
+    println!("cargo:rustc-link-search=native={}", lib_path.display());
+}