fix(inbox): don't render GitHub bot avatars in reviewers list

packages/ui/src/features/inbox/components/utils/SuggestedReviewerAvatar.tsx

@@ -1,4 +1,5 @@
 import { cn } from "@posthog/quill";
+import posthogIcon from "../../assets/posthog-icon.svg";
 
 const SIZE = {
   sm: { className: "h-[18px] w-[18px]", pixels: 28 },
@@ -11,6 +12,13 @@ interface SuggestedReviewerAvatarProps {
   className?: string;
 }
 
+/** GitHub bots are suffixed with `[bot]`, e.g. `dependabot[bot]`. */
+function isBotLogin(githubLogin: string): boolean {
+  return githubLogin.endsWith("[bot]");
+}
+
+const POSTHOG_BOT_LOGIN = "posthog[bot]";
+
 /** GitHub profile avatar for suggested reviewers – matches SuggestedReviewersEditor. */
 export function SuggestedReviewerAvatar({
   githubLogin,
@@ -19,6 +27,27 @@ export function SuggestedReviewerAvatar({
 }: SuggestedReviewerAvatarProps) {
   const config = SIZE[size];
 
+  if (isBotLogin(githubLogin)) {
+    // GitHub bot avatars are noisy generic icons; render the PostHog logo for our
+    // own bot and an empty space sized like the avatar for every other bot.
+    if (githubLogin === POSTHOG_BOT_LOGIN) {
+      return (
+        <img
+          src={posthogIcon}
+          alt=""
+          className={cn("shrink-0 object-contain", config.className, className)}
+        />
+      );
+    }
+
+    return (
+      <span
+        aria-hidden
+        className={cn("shrink-0", config.className, className)}
+      />
+    );
+  }
+
   return (
     <img
       src={`https://github.com/${githubLogin}.png?size=${config.pixels}`}