build: add api server health endpoint

server-rs/apps/api-server/src/health.rs

@@ -0,0 +1,16 @@
+use axum::{extract::Extension, Json};
+use serde_json::{json, Value};
+
+use crate::{api_response::json_success_body, request_context::RequestContext};
+
+pub async fn health_check(
+    Extension(request_context): Extension<RequestContext>,
+) -> Json<Value> {
+    json_success_body(
+        Some(&request_context),
+        json!({
+            "ok": true,
+            "service": "genarrative-node-server",
+        }),
+    )
+}