Add console command with automatic endpoint resolution

portainer-cli console <stack> <container> looks up the stack by name to
find its endpoint ID automatically, so the user never needs to specify it.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/portainer_cli.rb

@@ -8,6 +8,7 @@ require_relative 'portainer_cli/commands/configure'
 require_relative 'portainer_cli/commands/list'
 require_relative 'portainer_cli/commands/create'
 require_relative 'portainer_cli/commands/exec'
+require_relative 'portainer_cli/commands/console'
 
 module PortainerCli
   module CLI
@@ -29,7 +30,9 @@ module PortainerCli
         portainer-cli list networks   <endpoint-id>             List networks
         portainer-cli create stack    --endpoint ID --name NAME --file FILE
         portainer-cli create container --endpoint ID --image IMAGE [--name NAME] [--port h:c] [--env K=V]
-        portainer-cli exec <endpoint-id> <container>            Open interactive shell
+        portainer-cli console <stack> <container>                Open interactive shell (resolves endpoint automatically)
+          --shell SHELL                                          Shell to use (default: /bin/sh)
+        portainer-cli exec <endpoint-id> <container>            Open interactive shell (manual endpoint)
           --shell SHELL                                          Shell to use (default: /bin/sh)
 
       Config file: ~/.portainer-cli/config.yml
@@ -50,7 +53,11 @@ module PortainerCli
         require_config!(config)
         client = Client.new(config)
         Commands::Create.new(config, client).run(argv)
-      when 'exec', 'shell', 'console'
+      when 'console'
+        require_config!(config)
+        client = Client.new(config)
+        Commands::Console.new(config, client).run(argv)
+      when 'exec', 'shell'
         require_config!(config)
         client = Client.new(config)
         Commands::Exec.new(config, client).run(argv)