feat(blog::components::check_update) impl consistency_guard, fix handle_create issues

backend/server/Cargo.toml

@@ -25,6 +25,9 @@ dotenv = "0.15.0"
 uuid = { version = "1.13.2", features = ["v4"] }
 futures = "0.3.31"
 
+[dev-dependencies]
+tempfile = "3.19.1"
+
 [build-dependencies]
 git2 = "0.20.0"
 chrono = "0.4.39"