Add initial Go CLI skeleton

internal/cli/orch/root.go

@@ -0,0 +1,26 @@
+package orch
+
+import (
+	"github.com/spf13/cobra"
+)
+
+type rootOptions struct {
+	dbPath string
+	json   bool
+}
+
+func NewRootCmd() *cobra.Command {
+	opts := &rootOptions{}
+
+	cmd := &cobra.Command{
+		Use:   "orch",
+		Short: "Leader-facing scheduler and control plane",
+	}
+
+	cmd.PersistentFlags().StringVar(&opts.dbPath, "db", ".agents/coord.db", "SQLite database path")
+	cmd.PersistentFlags().BoolVar(&opts.json, "json", false, "Emit machine-readable JSON")
+
+	cmd.AddCommand(newRunCmd())
+
+	return cmd
+}