Optimize CMS images during builds

scripts/verify-decap.mjs

@@ -1,6 +1,7 @@
 import { readFile, readdir } from 'node:fs/promises';
 import { join } from 'node:path';
 import yaml from 'js-yaml';
+import { maxSourceImageBytes } from './image-policy.mjs';
 
 const fail = (message) => { throw new Error(message); };
 const assert = (condition, message) => { if (!condition) fail(message); };
@@ -54,7 +55,7 @@ const optionalImageField = {
   choose_url: false,
   allow_multiple: false,
   pattern: cmsImagePattern,
-  media_library: { config: { max_file_size: 512000, multiple: false } },
+  media_library: { config: { max_file_size: maxSourceImageBytes, multiple: false } },
 };
 const imageAltField = { widget: 'string', pattern: ['^.{8,180}$', 'Describe the image in 8–180 characters.'] };
 const expectedCollections = {
@@ -185,6 +186,13 @@ for (const fragment of [
   'featured: z.boolean().default(false)',
 ]) assert(schema.includes(fragment), `Astro schema changed; review the Decap contract for: ${fragment}`);
 
+const buildScript = await readFile('scripts/build-site.mjs', 'utf8');
+assert(buildScript.includes("['scripts/optimize-images.mjs']"), 'Every site build must optimize uploaded images before deployment.');
+const imageOptimizer = await readFile('scripts/optimize-images.mjs', 'utf8');
+for (const fragment of ['maxBuiltImageBytes', 'maxBuiltImageDimension', '.rotate()', 'metadata.exif', 'metadata.icc', 'metadata.iptc', 'metadata.xmp']) {
+  assert(imageOptimizer.includes(fragment), `Built-image optimization changed; review the CMS media contract for: ${fragment}`);
+}
+
 async function verifyContentPaths(directory) {
   const entries = await readdir(directory, { withFileTypes: true });
   for (const entry of entries) {