CLI: Introduce @herb-tools/cli package for shared herb CLI

javascript/packages/cli/bin/herb

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+#!/usr/bin/env node
+
+import("../dist/index.mjs")

javascript/packages/cli/package.json

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+{
+  "name": "@herb-tools/cli",
+  "version": "0.7.5",
+  "description": "Unified CLI for Herb HTML+ERB tools",
+  "license": "MIT",
+  "homepage": "https://herb-tools.dev",
+  "bugs": "https://github.com/marcoroth/herb/issues/new?title=Package%20%60@herb-tools/cli%60:%20",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/marcoroth/herb.git",
+    "directory": "javascript/packages/cli"
+  },
+  "bin": {
+    "herb": "./bin/herb"
+  },
+  "scripts": {
+    "clean": "rimraf dist",
+    "build": "yarn clean && tsup-node && yarn bundle:playground",
+    "bundle:playground": "node scripts/bundle-playground.mjs",
+    "watch": "tsup-node --watch",
+    "test": "vitest run",
+    "test:watch": "vitest --watch",
+    "prepublishOnly": "yarn clean && yarn build && yarn test"
+  },
+  "dependencies": {
+    "@herb-tools/config": "0.7.5",
+    "@herb-tools/formatter": "0.7.5",
+    "@herb-tools/highlighter": "0.7.5",
+    "@herb-tools/language-server": "0.7.5",
+    "@herb-tools/linter": "0.7.5",
+    "@herb-tools/node-wasm": "0.7.5",
+    "@herb-tools/printer": "0.7.5",
+    "@herb-tools/tailwind-class-sorter": "0.7.5",
+    "glob": "^11.0.3",
+    "lz-string": "^1.5.0",
+    "mri": "^1.2.0",
+    "open": "^10.2.0",
+    "picocolors": "^1.1.1",
+    "stimulus-lint": "0.1.5"
+  },
+  "files": [
+    "package.json",
+    "README.md",
+    "bin/",
+    "dist/"
+  ]
+}

javascript/packages/cli/scripts/bundle-playground.mjs

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+#!/usr/bin/env node
+
+import fs from "fs/promises"
+import path from "path"
+import { fileURLToPath } from "url"
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+async function copyDir(src, dest) {
+  await fs.mkdir(dest, { recursive: true })
+  const entries = await fs.readdir(src, { withFileTypes: true })
+
+  for (const entry of entries) {
+    const srcPath = path.join(src, entry.name)
+    const destPath = path.join(dest, entry.name)
+
+    if (entry.isDirectory()) {
+      await copyDir(srcPath, destPath)
+    } else {
+      await fs.copyFile(srcPath, destPath)
+    }
+  }
+}
+
+async function main() {
+  const playgroundSrc = path.join(__dirname, "../../../../playground/dist")
+  const playgroundDest = path.join(__dirname, "../dist/playground")
+
+  try {
+    await fs.access(playgroundSrc)
+
+    console.log("Bundling playground into CLI package...")
+
+    try {
+      await fs.rm(playgroundDest, { recursive: true, force: true })
+    } catch (error) {
+      // Ignore
+    }
+
+    await copyDir(playgroundSrc, playgroundDest)
+
+    console.log("✓ Playground bundled successfully")
+  } catch (error) {
+    console.warn("⚠ Warning: Could not bundle playground")
+    console.warn("  Playground dist not found at:", playgroundSrc)
+    console.warn("  Run 'cd playground && yarn build' to build the playground first")
+    console.warn("  The CLI will still work for other commands")
+  }
+}
+
+main().catch((error) => {
+  console.error("Error bundling playground:", error)
+  process.exit(1)
+})