perf(assets): serve minified web bundles

[ThisIs-Developer]

What changed

• Added generated script.min.js and styles.min.css production bundles.
• Updated the web app shell to preload and load the minified JS/CSS assets.
• Updated the service worker cache list and rotated the cache namespace to v3.9.1 so deployed clients fetch the new asset names.
• Updated preview-worker URL detection so it works when the app is loaded from script.min.js.
• Updated the Neutralino desktop prepare step and regenerated desktop resources so desktop packaging still maps web minified references back to local desktop assets.

Why

SEO/performance tooling reported that production was loading unminified first-party script.js and styles.css. Serving minified bundles reduces transfer size and avoids that crawler warning while keeping the readable source files in the repo for development.

Testing

• node --check script.js
• node --check script.min.js
• node --check sw.js
• node --check preview-worker.js
• Local HTTP fetch smoke test for /index.html, /script.min.js, /styles.min.css, and /sw.js
• git diff --check
• node desktop-app/prepare.js

Privacy and storage notes

• No Share Snapshot, Live Share, import, export, renderer, or storage behavior was changed.
• This only changes which bundled JS/CSS files are loaded by the web app and cached by the service worker.

Screenshots

Not applicable; this is a production asset/performance change with no intended UI changes.

[cloudflare-workers-and-pages]

Deploying markdownviewer with    Cloudflare Pages

Latest commit:	d19c0cc
Status:	✅  Deploy successful!
Preview URL:	https://40056393.markdownviewer.pages.dev
Branch Preview URL:	https://perf-minify-web-assets.markdownviewer.pages.dev

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Project	Deployment	Actions	Updated (UTC)
markdown-viwer	Ready	Preview, Comment	Jul 9, 2026 8:51pm