Add one-command dev-to-prod release with clear SUCCESS/FAILED banners.

Introduce devtoprod:release orchestrator, config file, CLI result footers on deploy scripts, auto-thumb regeneration on curator fixes, and updated deploy documentation.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/run-devtoprod-thumbnails.js

@@ -0,0 +1,45 @@
+/**
+ * Run painting + portrait thumbnail regeneration and print one combined result.
+ */
+const { spawnSync } = require('child_process');
+const path = require('path');
+const { printCliResult } = require('./lib/cli-result');
+
+const rootDir = path.join(__dirname, '..');
+const scripts = [
+  { name: 'regenerate-thumbnails', file: 'regenerate-thumbnails.js' },
+  { name: 'regenerate-portrait-thumbs', file: 'regenerate-portrait-thumbs.js' },
+];
+
+function runScript(script) {
+  const result = spawnSync(process.execPath, [path.join(__dirname, script.file)], {
+    cwd: rootDir,
+    stdio: 'inherit',
+    env: process.env,
+  });
+  return result.status ?? 1;
+}
+
+let failed = null;
+for (const script of scripts) {
+  const code = runScript(script);
+  if (code !== 0) {
+    failed = script.name;
+    break;
+  }
+}
+
+if (failed) {
+  printCliResult({
+    script: 'devtoprod-thumbnails',
+    ok: false,
+    summary: `Thumbnail regeneration failed at ${failed}.`,
+  });
+}
+
+printCliResult({
+  script: 'devtoprod-thumbnails',
+  ok: true,
+  summary: 'Painting and portrait thumbnail regeneration complete.',
+  details: ['Both regenerate-thumbnails and regenerate-portrait-thumbs succeeded.'],
+});