feat: switch to pnpm

CLAUDE.md

@@ -7,12 +7,12 @@ Printable math worksheet generator (A4 PDF) for children aged 7–9. Claude Code
 ## Commands
 
 ```bash
-npm run build:css          # Build Tailwind CSS (minified)
-npm run build:css:watch    # Watch mode for CSS
-npm run preview            # Serve HTML at localhost:3000 with live-reload
-npm run dev                # CSS watch + preview server (concurrent)
-npm run pdf -- <file>      # Convert HTML file to PDF
-npm run remove-bg -- <file|dir>  # Remove white background from PNG icons
+pnpm build:css          # Build Tailwind CSS (minified)
+pnpm build:css:watch    # Watch mode for CSS
+pnpm preview            # Serve HTML at localhost:3000 with live-reload
+pnpm dev                # CSS watch + preview server (concurrent)
+pnpm pdf -- <file>      # Convert HTML file to PDF
+pnpm remove-bg -- <file|dir>  # Remove white background from PNG icons
 ```
 
 Generate images via Banatie API:
@@ -186,5 +186,5 @@ Puppeteer settings for A4 worksheets:
 3. Claude reads `src/templates/space-base.html` + `src/examples/space-worksheet.html` as references
 4. Claude generates HTML file in `output/html/` — creates concrete problems from `task` text, assigns unique shuffled icons, builds all pages
 5. Add a link to the new document in `output/index.html` (card with title and path)
-6. Run `npm run pdf -- output/html/<file>.html` to create PDF
-7. Preview with `npm run preview` at localhost:3000
+6. Run `pnpm pdf -- output/html/<file>.html` to create PDF
+7. Preview with `pnpm preview` at localhost:3000

package.json

@@ -5,11 +5,11 @@
   "type": "module",
   "main": "index.js",
   "scripts": {
-    "build:css": "npx @tailwindcss/cli -i src/styles/main.css -o output/css/styles.css --minify",
-    "build:css:watch": "npx @tailwindcss/cli -i src/styles/main.css -o output/css/styles.css --watch",
+    "build:css": "tailwindcss -i src/styles/main.css -o output/css/styles.css --minify",
+    "build:css:watch": "tailwindcss -i src/styles/main.css -o output/css/styles.css --watch",
     "preview": "browser-sync start --config bs-config.cjs",
     "pdf": "node src/scripts/generate-pdf.mjs",
-    "dev": "concurrently \"npm run build:css:watch\" \"npm run preview\"",
+    "dev": "concurrently \"pnpm build:css:watch\" \"pnpm preview\"",
     "split-sprites": "node src/scripts/split-sprites.mjs",
     "remove-bg": "node src/scripts/remove-bg.mjs"
   },

pnpm-workspace.yaml

@@ -0,0 +1,4 @@
+ignoredBuiltDependencies:
+  - '@parcel/watcher'
+  - puppeteer
+  - sharp