Showcase links prefer repo Website setting; fix star count field

A private starred repo used to link visitors straight to a 404. The
link now uses the repo's Website setting when set, falls back to the
repo url only for public repos, and renders private repos without a
website as unlinked cards. Also: Gitea serializes the star count as
stars_count, not GitHub's stargazers_count - the stars chip had been
silently null and dropped.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

questions/index.yaml

@@ -23,9 +23,18 @@ alternatives:
             kind: gitea_starred
             username: bl
           public: true
+          # The link prefers the repo's Website setting so private
+          # repos can point at something the public can actually
+          # open; a private repo with no website gets no link at all
+          # (the card renders an unlinked heading) instead of a 404.
+          # Gitea calls the star count stars_count, not GitHub's
+          # stargazers_count.
           jq: >
-            .[] | {name: .name, description: .description, url: .html_url,
-            stars: .stargazers_count}
+            .[] | {name: .name, description: .description,
+            stars: .stars_count,
+            url: (if .website != null and .website != "" then .website
+            elif .private then null
+            else .html_url end)}
       - name: Your brief
         description: >
           A few lines are enough to begin a conversation — we need a