style: rustfmt the new rpc_socket tests

The project.resolve socket test had a node.create call over rustfmt's
line limit; CI's `cargo fmt --all --check` flagged it. Wrap it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/hephd/tests/rpc_socket.rs

@@ -124,7 +124,10 @@ fn project_resolve_is_case_insensitive_and_prefix_fuzzy_over_socket() {
     let mut c = client(&socket);
 
     let proj = c
-        .call("node.create", json!({ "kind": "project", "title": "Hephaestus" }))
+        .call(
+            "node.create",
+            json!({ "kind": "project", "title": "Hephaestus" }),
+        )
         .unwrap();
     let pid = proj["id"].as_str().unwrap().to_string();