fix: add Daytona cloud logo (#3274)

Adds the Daytona icon (from their GitHub org avatar) so the cloud
picker shows a proper logo instead of a text "D" placeholder.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: L <6723574+louisgv@users.noreply.github.com>

assets/clouds/.sources.json

@@ -15,6 +15,10 @@
     "url": "https://www.gstatic.com/cgc/super_cloud.png",
     "ext": "png"
   },
+  "daytona": {
+    "url": "https://avatars.githubusercontent.com/u/130513197?v=4&s=128",
+    "ext": "png"
+  },
   "sprite": {
     "url": "https://sprites.dev/images/favicon/apple-touch-icon.png",
     "ext": "png"

manifest.json

@@ -439,7 +439,8 @@
         "image": "daytonaio/sandbox:latest",
         "size": "small"
       },
-      "notes": "Uses the Daytona SDK for sandbox lifecycle, file transfer, and signed preview URLs. SSH access tokens are minted on demand and never persisted."
+      "notes": "Uses the Daytona SDK for sandbox lifecycle, file transfer, and signed preview URLs. SSH access tokens are minted on demand and never persisted.",
+      "icon": "https://raw.githubusercontent.com/OpenRouterTeam/spawn/main/assets/clouds/daytona.png"
     },
     "sprite": {
       "name": "Sprite",