chore: improve scripts for extension

CONTRIBUTING.md

@@ -16,6 +16,7 @@ Thank you for your interest in contributing to PageAgent! We welcome contributio
     ```bash
     npm ci
     npm start          # Start demo and documentation site
+    npm run build      # Build libs and website
     ```
 
 ### Project Structure

package.json

@@ -24,14 +24,17 @@
         "node": "^20.19.0 || ^22.13.0 || >=24"
     },
     "scripts": {
-        "cleanup": "rm -rf packages/*/dist",
         "start": "npm run dev --workspace=@page-agent/website",
-        "build:website": "npm run build:website --workspace=@page-agent/website",
-        "build:libs": "npm run build --workspaces --if-present",
-        "build": "npm run build:libs && npm run build:website",
+        "dev:ext": "npm run dev -w @page-agent/ext",
         "dev:demo": "npm run dev:demo --workspace=page-agent",
+        "build": "npm run build:libs && npm run build:website",
+        "build:libs": "npm run build --workspaces --if-present",
+        "build:website": "npm run build:website --workspace=@page-agent/website",
+        "build:ext": "npm run build:libs && npm run build:ext -w @page-agent/ext",
         "version": "node scripts/sync-version.js",
+        "version:ext": "node scripts/ext-version.js",
         "lint": "eslint .",
+        "cleanup": "rm -rf packages/*/dist",
         "prepare": "husky"
     },
     "devDependencies": {

scripts/ext-version.js

@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+/**
+ * Bump extension version and show git tag commands
+ *
+ * Usage:
+ *   node scripts/ext-version.js 0.1.16
+ */
+import chalk from 'chalk'
+import { readFileSync, writeFileSync } from 'fs'
+import { dirname, join } from 'path'
+import { exit } from 'process'
+import { fileURLToPath } from 'url'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const pkgPath = join(__dirname, '..', 'packages', 'extension', 'package.json')
+
+const newVersion = process.argv[2]
+if (!newVersion) {
+	console.log(chalk.yellow('⚠️  Usage: npm run ext:version <version>\n'))
+	exit(1)
+}
+
+const pkg = JSON.parse(readFileSync(pkgPath, 'utf-8'))
+const oldVersion = pkg.version
+
+pkg.version = newVersion
+writeFileSync(pkgPath, JSON.stringify(pkg, null, '    ') + '\n')
+
+console.log(
+	chalk.green.bold('\n✓') +
+		` ${chalk.bold('@page-agent/ext')}: ${chalk.dim(oldVersion)} → ${chalk.yellow(newVersion)}\n`
+)
+
+const tagName = `EXT_v${newVersion}`
+console.log(chalk.cyan.bold('📋 Next steps:\n'))
+console.log(
+	chalk.blueBright(`git add . && git commit -m "chore(extension): bump version to ${newVersion}"`)
+)
+console.log(chalk.blueBright(`git tag -a ${tagName} -m "${tagName}"`))
+console.log(chalk.blueBright(`git push && git push origin ${tagName}\n`))