Remove VM from cache and destroy with spinner

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@because/sandlot",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "Sandboxed, branch-based development with Claude",
   "type": "module",
   "bin": {

src/commands/vm.ts

@@ -74,8 +74,14 @@ export function register(program: Command) {
     .command("destroy")
     .description("Stop and delete the VM")
     .action(async () => {
+      const spin = spinner("Destroying VM")
+      try {
         await vm.destroy()
-      console.log("✔ VM destroyed")
+        spin.succeed("VM destroyed")
+      } catch (err) {
+        spin.fail(String((err as Error).message ?? err))
+        process.exit(1)
+      }
     })
 
   vmCmd