Tighten clean card visual noise rules

tools/export-card-assets.mjs

@@ -181,7 +181,8 @@ function promptFor(character, stage) {
     `Adult visual appeal: ${character.appealFocus}; ${adultAppeal}.`,
     `Scene/backdrop: ${character.scene}; ${elementName} elemental atmosphere; no other characters.`,
     `Style/medium: ${character.style}, portrait card composition.`,
-    "Visual noise control: keep tiny sparkles, glitter, particle clutter, micro-shards, and confetti-like debris sparse; use a few large readable elemental shapes and clear silhouettes instead of dense shimmering detail that makes the card hard to look at.",
+    "Manager-preferred clean card style: prioritize the clear, calm readability of the C0007 baseline approach--large silhouette, clean focal areas, broad elemental or gravity shapes, crisp costume/equipment detail, and a background that supports the character instead of competing with her.",
+    "Strict visual noise control: do not fill the image with tiny sparkles, glitter dust, particle clouds, micro-shards, confetti debris, or random luminous specks. Use at most a few large readable elemental shapes, broken equipment pieces, or broad impact arcs; leave negative space around the face, torso, weapon, and main silhouette so the card reads cleanly at game size.",
     "Composition/framing: full body or knees-up character centered, strong silhouette, vertical card art, cinematic but readable.",
     `Damage state: ${spec.visual}.`,
     `Impact intensity: ${spec.impactIntensity}. Make the damage feel forceful and physically convincing, not like mild fashion distressing.`,