feat(demo): expand demo pet images and seed data with diverse breed showcase

Generated 16 diverse pet images for demo site using MiniMax image generation:
- Multiple dog breeds (Golden Retriever, Poodle, Labrador, Shih Tzu, Cocker Spaniel, Schnauzer, Maltese, Dachshund, Pomeranian)
- Professional grooming styles and poses
- Studio lighting for quality showcase

Updated seed.ts to create 9 demo pets with image references:
- Expands from single demo pet to diverse pet portfolio
- Images deployed to apps/web/public/demo-pets/
- Each pet has breed-accurate styling and professional grooming

This completes GRO-395 demo assets expansion using allocated MiniMax credits.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

packages/db/migrations/meta/_journal.json

@@ -148,6 +148,20 @@
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       "tag": "0020_typical_daimon_hellstrom",
       "breakpoints": true
+    },
+    {
+      "idx": 21,
+      "version": "7",
+      "when": 1775136867192,
+      "tag": "0021_pet_image",
+      "breakpoints": true
+    },
+    {
+      "idx": 22,
+      "version": "7",
+      "when": 1775223267192,
+      "tag": "0022_logo_key",
+      "breakpoints": true
     }
   ]
 }