feat: support jump host ports in SSH menu

Allow jump host definitions to include an explicit port in the form user@host:port.
Default to port 22 when no port is provided and update the sample config and docs accordingly.

.memory/project.md

@@ -9,6 +9,5 @@
 - Documentation language: English.
 - Current task focus: keep README and memory aligned with the working script and sample configuration.
 - Known follow-up improvements:
-	- Jump server currently does not support an alternate port; this needs to be added.
 	- Group naming should avoid duplicating the file name and the YAML value.
 	- Each group should have default values.

README.md

@@ -45,6 +45,8 @@ ssh:
   default_options: ""
   jump_hosts:
     office: "user@192.168.10.11"
+    office-alt: "user@192.168.10.11:2222"
+
 ```
 
 ### `hosts/dev.yaml`
@@ -98,6 +100,7 @@ A complete sample configuration is available in `sample-config/`.
 ## Notes
 
 - `jump_host` values are resolved by name from `global.yaml`.
+- Jump hosts support `user@host` and `user@host:port`; if the port is omitted, `22` is used.
 - If a host does not define a user or port, global defaults are used.
 - `default_options` is present in the config but not consumed by the current script.
 - The sample config includes `ssh_options` in one file, but the current script does not consume it yet.

mtm-ssh-menu

@@ -153,7 +153,14 @@ ssh_connect() {
 		SSH_JUMP_HOST=$(jq -r '.jump_host // ""' <<<"$SERVER")
 		if [ "$SSH_JUMP_HOST" != "" ]; then
 			SSH_JUMP_HOST=$(jq -r '.'"$SSH_JUMP_HOST"' // ""' <<<"${SSH_JUMP_HOSTS}")
-			SSH_JUMP_HOST="-t $SSH_JUMP_HOST ssh -p $SSH_SERVER_PORT"
+			SSH_JUMP_HOST_USER=$(cut -d'@' -f1 <<<"$SSH_JUMP_HOST")
+			SSH_JUMP_HOST_TARGET=$(cut -d'@' -f2- <<<"$SSH_JUMP_HOST")
+			SSH_JUMP_HOST_TARGET_HOST=$(cut -d':' -f1 <<<"$SSH_JUMP_HOST_TARGET")
+			SSH_JUMP_HOST_TARGET_PORT=$(cut -s -d':' -f2 <<<"$SSH_JUMP_HOST_TARGET")
+			if [ "$SSH_JUMP_HOST_TARGET_PORT" = "" ]; then
+				SSH_JUMP_HOST_TARGET_PORT="22"
+			fi
+			SSH_JUMP_HOST="-t ${SSH_JUMP_HOST_USER}@${SSH_JUMP_HOST_TARGET_HOST} ssh -p ${SSH_JUMP_HOST_TARGET_PORT}"
 			SSH_SERVER_OPTIONS=""
 		fi
 

sample-config/global.yaml

@@ -4,3 +4,5 @@ ssh:
   default_options: ""
   jump_hosts:
     office: "user@192.168.10.11"
+    dev: "user@192.168.10.11:2222"
+    backup: "admin@10.0.0.5:2200"