Push auto screenshots to the GitHub README on submit

Editor design ships persist the submitted screenshot but never re-pushed the
GitHub README, so a circuit screenshot the maker never uploaded by hand only
reached the repo if they went back and saved the project basics. Refresh the
README from shipProjectFromForm right after the ship persists, gated to auto
screenshots (/auto.png) so a hand-uploaded shot still publishes via the
edit-modal save path instead. Scheduled with after() and best-effort, so it
doesn't block the submit or touch repos we don't own.

Author: TaniWanKenobi

src/actions/projects.ts

@@ -1,6 +1,7 @@
 "use server";
 
 import { revalidatePath } from "next/cache";
+import { after } from "next/server";
 import { z } from "zod";
 import type { HackClubClaims } from "@/lib/auth/hackclub";
 import { assertHackClubYswsEligible, ensureSlackId } from "@/lib/auth/hackclub";
@@ -28,6 +29,10 @@ import {
   getUnjournaledSeconds,
   JOURNAL_MIN_SECONDS,
 } from "@/lib/editor/journal-time";
+import {
+  refreshGitHubReadme,
+  resolvePublicOrigin,
+} from "@/lib/projects/githubReadme";
 import {
   fetchTimelapsesForUser,
   lapseProgramKeyConfigured,
@@ -446,6 +451,18 @@ export async function shipProjectFromForm(
       projectId,
       data,
     );
+    // An auto-generated circuit screenshot the maker never uploaded by hand
+    // only reaches the repo if we push it: shipProjectForUser has persisted it
+    // to the project row, so refresh the published GitHub README now. Limited
+    // to auto screenshots ("/auto.png") on purpose. A hand-uploaded shot is the
+    // maker's to publish via the edit-modal save, so we don't auto-push it here.
+    // Scheduled with after() so the submit response doesn't wait on the GitHub
+    // round-trip; refreshGitHubReadme never throws and skips repos we don't own.
+    // Origin is resolved here because headers() is gone in after().
+    if (data.screenshotUrl.endsWith("/auto.png")) {
+      const origin = await resolvePublicOrigin();
+      after(() => refreshGitHubReadme(projectId, session.user.id, origin));
+    }
     await notifyReviewSubmitted(projectId, "materials");
     await syncUserToLoops(session.user.id);
     revalidatePath("/platform/projects");