feat: JoinPath helper — joins segments with /

core.JoinPath("deploy", "to", "homelab") → "deploy/to/homelab"
Cli.Run uses it for command path resolution.

Co-Authored-By: Virgil <virgil@lethean.io>

pkg/core/cli.go

@@ -63,7 +63,7 @@ func (cl *Cli) Run(args ...string) Result[any] {
 	var remaining []string
 
 	for i := len(clean); i > 0; i-- {
-		path := strings.Join(clean[:i], "/")
+		path := JoinPath(clean[:i]...)
 		if c, ok := cl.core.commands.commands[path]; ok {
 			cmd = c
 			remaining = clean[i:]

pkg/core/utils.go

@@ -23,6 +23,14 @@ func Print(w io.Writer, format string, args ...any) {
 	fmt.Fprintf(w, format+"\n", args...)
 }
 
+// JoinPath joins string segments into a path with "/" separator.
+//
+//	core.JoinPath("deploy", "to", "homelab")  // → "deploy/to/homelab"
+//	core.JoinPath(args[:3]...)                 // → first 3 args as path
+func JoinPath(segments ...string) string {
+	return strings.Join(segments, "/")
+}
+
 // FilterArgs removes empty strings and Go test runner flags from an argument list.
 //
 //	clean := core.FilterArgs(os.Args[1:])