Add manual signed peer card exchange

README.md

@@ -72,6 +72,9 @@ The bootstrap implementation provides:
 - `geth daemon service install|uninstall|start|stop|status|print`
 - `geth status`
 - `geth node id`
+- `geth peer export [--out <path>]`
+- `geth peer import <path>`
+- `geth peer list`
 - `geth resource list`
 - `geth resource create <kind> <name>`
 - `geth keychain init [--admin-key <path>]`
@@ -109,7 +112,11 @@ The bootstrap implementation provides:
   - `geth ssh revocation export --out <path> [--format jsonl|openssh-krl-spec]`
 - local pipe registry commands: `geth pipe listen/connect`
 
-Other command groups exist as explicit stubs: `ssh`.
+`geth peer export/import/list` is for untrusted peer-card exchange while live
+LAN discovery and authenticated Iroh dialing are still being built. Importing a
+peer card never grants capabilities by itself.
+
+Other command groups exist as explicit stubs: `ssh proxy`.
 
 ## Resource Modules