Add SSH cert flows and user service installer

docs/roadmap.md

@@ -7,6 +7,7 @@
 - local store
 - local identity
 - local CAS
+- user service installer for systemd, launchd, and Windows scheduled tasks
 - docs and ADRs
 
 ## Phase 1: Iroh Foundation
@@ -16,10 +17,14 @@
 - peer discovery
 - peer exchange
 - basic authenticated peer connection
+- additional user service manager backends where useful
 
 ## Phase 2: Trust And Authorization
 
 - SSH-admin-rooted keychain
+- SSH certificate request and renewal queues
+- CA/YubiKey approval workflow
+- certificate and key revocation-list records
 - signed keychain ops
 - resource auth ops
 - grants and revocations
@@ -39,6 +44,8 @@
 - dumbpipe-style streams
 - TCP and Unix socket forwarding
 - SSH proxy over Iroh
+- SSH certificate and revocation distribution over Iroh
+- OpenSSH KRL export/import support
 - restricted geth admin shell
 
 ## Phase 5: DB And Documents