refactor: use shared spinner

package.json

@@ -1,6 +1,6 @@
 {
   "name": "opencode-multi-model",
-  "version": "0.1.6",
+  "version": "0.2.0",
   "description": "Launch multiple AI models in tmux sessions - OpenCode Plugin, CLI, and Project Tool",
   "type": "module",
   "main": "./dist/index.js",

src/core/utils.ts

@@ -8,6 +8,8 @@ import type {
   WorktreeInfo,
 } from "../types";
 
+let sharedSpinner: Ora | undefined;
+
 const MAX_SUGGESTIONS = 3;
 const WINDOW_NAME_LIMIT = 24;
 
@@ -35,17 +37,21 @@ export async function runCommand(
     process.env.NODE_ENV === "test" || process.env.BUN_ENV === "test";
   if (options?.mode === "cli" && !isTest) {
     const msg = options.spinnerMsg || `Running ${parts[0]}...`;
-    spinner = ora(msg).start();
+    if (!sharedSpinner) {
+      sharedSpinner = ora(msg).start();
+    } else {
+      sharedSpinner.text = msg;
+      if (!sharedSpinner.isSpinning) {
+        sharedSpinner.start();
+      }
+    }
+    spinner = sharedSpinner;
   }
 
   const result = await Bun.$`${parts}`.quiet().nothrow();
 
   if (spinner) {
-    if (result.exitCode === 0) {
-      spinner.succeed();
-    } else {
-      spinner.fail();
-    }
+    spinner.stop().clear();
   }
 
   return {