Add CPU and memory limits for apps

Adds --memory and --cpu flags to set systemd resource limits:
  ship --binary ./app --memory 512M --cpu 100%

Also adds config update mode - use --name without --binary to
update an existing app's config without redeploying the binary:
  ship --name myapp --cpu 50%
  ship --name myapp --memory 256M --env DEBUG=true

Limits are stored in state and preserved on redeploy.

1 files changed, 2 insertions, 0 deletions

diff --git a/cmd/ship/main.go b/cmd/ship/main.go
index a6984ec..47dd579 100644
--- a/cmd/ship/main.go
+++ b/cmd/ship/main.go
@@ -65,6 +65,8 @@ func init() {
         rootCmd.Flags().String("env-file", "", "Path to .env file")
         rootCmd.Flags().String("args", "", "Arguments to pass to binary")
         rootCmd.Flags().StringArray("file", nil, "Config file to upload to working directory (can be specified multiple times)")
+        rootCmd.Flags().String("memory", "", "Memory limit (e.g., 512M, 1G)")
+        rootCmd.Flags().String("cpu", "", "CPU limit (e.g., 50%, 200% for 2 cores)")
 
         // Add subcommands
         rootCmd.AddCommand(listCmd)