Add SSH cert flows and user service installer

Cargo.lock

@@ -449,6 +449,7 @@ dependencies = [
  "geth-cas",
  "geth-cli",
  "geth-config",
+ "geth-control",
  "geth-node",
  "tempfile",
  "tokio",
@@ -516,6 +517,7 @@ version = "0.1.0"
 dependencies = [
  "geth-auth",
  "geth-resource",
+ "geth-ssh-identity",
  "geth-types",
  "serde",
  "serde_json",
@@ -595,6 +597,7 @@ dependencies = [
  "geth-control",
  "geth-crypto",
  "geth-resource",
+ "geth-ssh-identity",
  "geth-store",
  "geth-types",
  "serde_json",
@@ -642,6 +645,10 @@ dependencies = [
 name = "geth-ssh-identity"
 version = "0.1.0"
 dependencies = [
+ "blake3",
+ "geth-types",
+ "serde",
+ "serde_json",
  "thiserror 2.0.18",
 ]