editorial, blueprint and clay are missing aspect: 16:9, so those covers render square

The need

Of the eleven cover-capable themes in , eight carry and three do not:

aspect: 16:9	no aspect
cutpaper, linocut, lowpoly, neon, pixel, popart, tattoo	editorial, blueprint, clay (and , which is deliberately square)

The consequence is that every cover generated with those three comes back 1024x1024 rather than a wide banner, and has to be cropped or padded by hand afterwards.

That matters more than it sounds, because of which three they are. In our house style:

• editorial is the style for every op-ed
• blueprint is the style for every tutorial
• clay is one of the general project styles

So the three missing the aspect are the ones behind two entire article lanes. Every op-ed and tutorial cover produced so far has been square and manually corrected.

Evidence

Same scene, same session:

• -> 1024x1024
• -> 1408x768, first try, no other change

Their prompt text already says "Wide 16:9 banner", so the prompt is not the lever; the aspect key is.

Expected

The seeded themes are internally consistent, so a cover style intended as a wide banner produces one without the caller knowing which themes happen to carry the key.

Environment

keryx v0.9.0, catalogue migrated per spec 0047. Not fixed locally: these are seeded house themes and felt like they should be corrected at source rather than patched in one users config.