Make zip.js, fflate, and PDF.js dev dependencies

Previously, zip.js and fflate were built from the main Foliate repo.
And PDF.js files were copied manually. Now they all build here.

Unfortunately, two CSS files still need to be copied manually.

package.json

@@ -17,8 +17,18 @@
     "./*.js": "./*.js"
   },
   "devDependencies": {
-    "@eslint/js": "^9.1.0",
+    "@eslint/js": "^9.9.1",
-    "globals": "^15.0.0"
+    "@rollup/plugin-node-resolve": "^15.2.3",
+    "@rollup/plugin-terser": "^0.4.4",
+    "@zip.js/zip.js": "^2.7.52",
+    "fflate": "^0.8.2",
+    "fs-extra": "^11.2.0",
+    "globals": "^15.9.0",
+    "pdfjs-dist": "^4.7.76",
+    "rollup": "^4.22.4"
+  },
+  "scripts": {
+    "build": "npx rollup -c"
   },
   "keywords": [
     "ebook",

rollup.config.js

@@ -0,0 +1,32 @@
+import { nodeResolve } from '@rollup/plugin-node-resolve'
+import terser from '@rollup/plugin-terser'
+import { copy } from 'fs-extra'
+
+const copyPDFJS = () => ({
+    name: 'copy-pdfjs',
+    async writeBundle() {
+        await copy('node_modules/pdfjs-dist/build/pdf.mjs', 'vendor/pdfjs/pdf.mjs')
+        await copy('node_modules/pdfjs-dist/build/pdf.mjs.map', 'vendor/pdfjs/pdf.mjs.map')
+        await copy('node_modules/pdfjs-dist/build/pdf.worker.mjs', 'vendor/pdfjs/pdf.worker.mjs')
+        await copy('node_modules/pdfjs-dist/build/pdf.worker.mjs.map', 'vendor/pdfjs/pdf.worker.mjs.map')
+        await copy('node_modules/pdfjs-dist/cmaps', 'vendor/pdfjs/cmaps')
+        await copy('node_modules/pdfjs-dist/standard_fonts', 'vendor/pdfjs/standard_fonts')
+    },
+})
+
+export default [{
+    input: 'rollup/fflate.js',
+    output: {
+        dir: 'vendor/',
+        format: 'esm',
+    },
+    plugins: [nodeResolve(), terser()],
+},
+{
+    input: 'rollup/zip.js',
+    output: {
+        dir: 'vendor/',
+        format: 'esm',
+    },
+    plugins: [nodeResolve(), terser(), copyPDFJS()],
+}]

rollup/fflate.js

@@ -0,0 +1 @@
+export { unzlibSync } from 'fflate'

rollup/zip.js

@@ -0,0 +1 @@
+export { configure, ZipReader, BlobReader, TextWriter, BlobWriter } from '../node_modules/@zip.js/zip.js/lib/zip-no-worker-inflate.js'

vendor/fflate.js

@@ -1 +1 @@
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