Link roundup posts from Shelf cards and keep long link lists short

Shelf game cards show the post about the game, as Library rows already
do. A make's chip prefers its own build log and says Blog for other
posts. Post chips and Connected pages count the links past the first
few, so a roundup linking a hundred items stays readable.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aSbo2D1qP8cMFQCykf7kx

services/site/src/components/blog/PageChips.astro

@@ -0,0 +1,26 @@
+---
+/**
+ * A post's page chips. A roundup can link a hundred pages, so past the first
+ * few the rest are counted; the post itself links every one.
+ */
+import Chip from "@gk/ui/components/Chip.astro";
+import type { PageLink } from "../../lib/blog.ts";
+
+interface Props {
+  links: PageLink[];
+  max?: number;
+}
+const { links, max = 5 } = Astro.props;
+const shown = links.length > max + 1 ? links.slice(0, max) : links;
+const more = links.length - shown.length;
+---
+{shown.map((l) => <Chip href={l.href}>{l.label}</Chip>)}
+{more > 0 && <span class="more">and {more} more</span>}
+
+<style>
+  .more {
+    font-size: 12px;
+    color: var(--gk-muted);
+    white-space: nowrap;
+  }
+</style>