Send the invitation as a light letter that names the community, the inviter by email, and who can read the Rule.

.gitignore

@@ -44,6 +44,9 @@ npm-cache/
 !public/favicon-32x32.png
 !public/apple-touch-icon.png
 
+# Invitation email mark (2x PNG; Gmail and Outlook drop SVG)
+!public/assets/logos/community-rule-mark.png
+
 # Per-article body ornaments (Figma Content page Template image fills)
 !public/content/blog/*-ornament-*.png