feat: Basic HTTP listener

Cargo.toml

@@ -5,6 +5,7 @@ edition = "2024"
 
 [dependencies]
 argh = "0.1.19"
+axum = { version = "0.8.9", optional = true }
 camino = "1.2.5"
 dn_escape = { path = "vendor/dn_escape" }
 futures-util = { version = "0.3.34", features = ["sink"] }
@@ -12,6 +13,7 @@ ldap3_proto = "0.8.1"
 serde = { version = "1.0.229", features = ["derive"] }
 tokio = { version = "1.53.1", features = ["macros", "net", "rt", "time", "sync"] }
 tokio-util = { version = "0.7.19", features = ["codec"] }
+tower = "0.5.3"
 tracing = "0.1.44"
 tracing-subscriber = "0.3.23"
 uuid = { version = "1.26.0", features = ["v4"] }
@@ -22,3 +24,7 @@ complexity = "deny"
 pedantic = "deny"
 perf = "deny"
 style = "deny"
+
+[features]
+default = [ "http" ]
+http = ["dep:axum"]