Fix icon upload: commit icon.png to repo root (actool doesn't emit AppIcon.png)

The built bundle contains sized variants (AppIcon60x60@2x.png etc.), not a
file named AppIcon.png, so the CI cp failed and scp aborted. Commit the
1024x1024 icon.png to the repo root and upload it directly.

.gitea/workflows/build.yml

@@ -87,10 +87,9 @@ jobs:
           # Upload .ipa + per-app metadata + icon to perlis via SSH.
           # PERLIS_SSH_HOST is the Tailscale MagicDNS name (perlis.bueso.loc),
           # reachable from the iMac runner over the Tailscale mesh.
-          # Extract the app icon from the built bundle as icon.png (the
-          # metadata's iconURL points at https://apps.bueso.eu/$APP_NAME/icon.png).
-          APP_PATH=$(find build/Build/Products -name "*.app" -type d | head -1)
-          cp "$APP_PATH/AppIcon.png" icon.png 2>/dev/null || true
+          # icon.png is committed to the repo (1024x1024) and uploaded as-is;
+          # the metadata's iconURL points at
+          # https://apps.bueso.eu/$APP_NAME/icon.png.
           ssh -o StrictHostKeyChecking=no \
             "${{ secrets.PERLIS_SSH_USER }}@${{ secrets.PERLIS_SSH_HOST }}" \
             "mkdir -p /mnt/appdata/ios-apps/$APP_NAME"