Fix remaining review follow-ups for #2361 (#2421)

Signed-off-by: 安正超 <anzhengchao@gmail.com>
Co-authored-by: jeadie <jack@spice.ai>
Co-authored-by: Jack Eadie <jack.eadie0@gmail.com>
Co-authored-by: loverustfs <hello@rustfs.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: houseme <housemecn@gmail.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: houseme <4829346+houseme@users.noreply.github.com>

rustfs/Cargo.toml

@@ -27,6 +27,10 @@ categories.workspace = true
 documentation = "https://docs.rustfs.com/"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[lib]
+name = "rustfs"
+path = "src/lib.rs"
+
 [[bin]]
 name = "rustfs"
 path = "src/main.rs"
@@ -89,6 +93,7 @@ rustfs-io-metrics = { workspace = true }
 rustfs-object-io = { workspace = true }
 rustfs-concurrency = { workspace = true }
 rustfs-scanner = { workspace = true }
+tempfile = { workspace = true }
 
 # Async Runtime and Networking
 async-trait = { workspace = true }