fix: automate node-pty rebuild to eliminate terminal issues

- Add postinstall hook to automatically rebuild node-pty after pnpm install
- Create scripts/rebuild-node-pty.js for automatic rebuild with error handling
- Remove manual node-pty rebuild from setup.sh (now automatic)

This ensures DirectTerminal works correctly on every installation without
manual intervention. Fixes posix_spawnp errors from incompatible prebuilt
binaries across different systems and installations.

Resolves issue where users would encounter blank terminals after setup.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

package.json

@@ -23,7 +23,8 @@
     "changeset": "changeset",
     "version-packages": "changeset version",
     "release": "pnpm -r --filter '!@composio/ao-web' build && changeset publish",
-    "prepare": "husky"
+    "prepare": "husky",
+    "postinstall": "node scripts/rebuild-node-pty.js"
   },
   "devDependencies": {
     "@changesets/cli": "^2.29.8",

scripts/rebuild-node-pty.js

@@ -0,0 +1,39 @@
+#!/usr/bin/env node
+// Automatically rebuild node-pty from source after pnpm install
+// This fixes DirectTerminal "posix_spawnp failed" errors from incompatible prebuilt binaries
+
+import { execSync } from "node:child_process";
+import { existsSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const repoRoot = join(__dirname, "..");
+
+// Find node-pty in pnpm node_modules
+const nodePtyPath = join(
+  repoRoot,
+  "node_modules/.pnpm/node-pty@1.1.0/node_modules/node-pty",
+);
+
+if (!existsSync(nodePtyPath)) {
+  console.log("ℹ️  node-pty not found, skipping rebuild");
+  process.exit(0);
+}
+
+console.log("🔧 Rebuilding node-pty from source...");
+
+try {
+  execSync("npx node-gyp rebuild", {
+    cwd: nodePtyPath,
+    stdio: "inherit",
+  });
+  console.log("✅ node-pty rebuilt successfully");
+} catch (error) {
+  console.warn("⚠️  node-pty rebuild failed (non-critical)");
+  console.warn("   DirectTerminal may not work correctly");
+  console.warn("   Run manually: cd node_modules/.pnpm/node-pty@1.1.0/node_modules/node-pty && npx node-gyp rebuild");
+  // Don't fail the install - node-pty rebuild failure is non-critical
+  process.exit(0);
+}

scripts/setup.sh

@@ -19,11 +19,6 @@ pnpm install
 echo "🔨 Building all packages..."
 pnpm build
 
-echo "🔧 Rebuilding node-pty from source (fixes DirectTerminal)..."
-cd node_modules/.pnpm/node-pty@1.1.0/node_modules/node-pty
-npx node-gyp rebuild > /dev/null 2>&1 || echo "⚠️  node-pty rebuild failed (non-critical)"
-cd ../../../../..
-
 echo "🔗 Linking CLI globally..."
 cd packages/cli
 npm link