feat: Add OpenGraph and Meta Tags Review and favicon capability to design task which can be important as a final production readiness

Summary

Design is working great, but two features could make it even better:

• -SEO review- OpenGraph and Meta Tags Review and additions (titles, descriptions, OG images, robots.txt, etc)
• favicon generation - generate a favicon steered by design brief

Expected Behavior

Design subcommands for set and favicon generation and refinement.

Production review would also check for presence and adherence to best practices, for example (some issues, some good/ok):

Image aspect ratio is wrong
og:image
Detected 1376×768 — most platforms expect 1.91:1 (1200×630). Card may be cropped or letterboxed.

Description is too long
og:description
212 characters — social previews often show ~125 characters and may truncate on mobile.

Image file is heavy
og:image
The image is 1.9 MB — recompress to < 1 MB for faster previews.
Missing headline in image
og:image
No clear headline detected. Images with a headline get higher engagement.

Missing call-to-action
og:image
No CTA found in the image. Adding one can significantly boost click-through rate.

Title is present
og:title
"<the title>>" — 36 characters.

Title length
og:title
36 characters — within the 60-character target.

Page title is present
title
"<the title>>" — 36 characters.

Meta description is present
description
154 characters — within the recommended range for search results.

X card uses a large image
twitter:card
summary_large_image is set, so X can render the image at full card width.

X title is missing
twitter:title
twitter:title is not strictly necessary — X falls back to og:title.

X description is missing
twitter:description
twitter:description is not strictly necessary — X falls back to og:description.

X image is present
twitter:image
twitter:image is set and can be used for the X preview.

Site name is set
og:site_name
"<title>" — Discord and others use this as the eyebrow.

Actual Behavior

I have to run the design command or other prompt to generate these manually.

Steps to reproduce the issue

n/a

Command Code Version

0.37.2

Operating System

macOS

Terminal/IDE

ghostty

Shell

zsh

Additional context

No response