feat: Make application async

Cargo.toml

@@ -14,9 +14,11 @@ schemars = { version = "1.2.1", features = ["semver1"] }
 serde_json = "1.0.149"
 
 [dependencies]
+async-walkdir = "2.1.0"
 byteorder = "1.5.0"
 clap = { version = "4.6.0", features = ["derive"] }
 clap_complete = "4.6.0"
+futures = "0.3.34"
 gix-discover = { version = "0.55.0", features = ["sha1"] }
 minijinja = { version = "2.18.0", features = ["json", "loader"] }
 netascii = "0.1.0"
@@ -34,7 +36,6 @@ serde_json = { workspace = true }
 serde_yaml = "0.9.34"
 thiserror = "2.0.18"
 tokio = { version = "1.52.1", features = ["full"] }
-walkdir = "2.5.0"
 
 [lib]
 test = false