Finish the Neon Tan reader-magnet page

Fill in the gift page's copy (title, description, subhead), wire the
cover image into the hero and og:image/Twitter card meta, and point the
download links at the real bucket path. Also fixes a bug where every
page's meta description fell back to the site-wide bio instead of its
own.

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

content/gift/index.md

@@ -1,23 +1,30 @@
 ---
-title: "TODO: Story Title"
-description: "TODO: one-line description of the free short story."
+title: "Get A Story"
+description: "An AI's trademark silver-blue suit isn't exactly beach-town vibes, but he's determined to land his song a spot on the weekly top 40 countdown anyway. After a string of failed attempts to get noticed by the countdown's enigmatic curator DJ, he and his wisecracking seagull sidekick stumble into an open mic night just as a malware glitch hits, forcing him to trade analysis for improvisation, rallying tourists into one spontaneous singalong to discover connection was never something you could calculate."
 type: "courses"
 eec_slug: "reader-magnet"
 
 # Optional italic line under the title, for handling an objection up front.
-hero_subhead: "TODO: subhead for the landing page"
+hero_subhead: "This story, occasional emails when something new comes out and other things you want in your inbox."
 
 # Label on the signup form's submit button.
 cta_text: "Send me the story"
 
+# Cover image, hosted in the public downloads bucket alongside the epub.
+# Used as the on-page hero image and for the og:image/Twitter card meta tags.
+cover_image: "https://downloads.michaelferrara.org/neon-tan/neon_tan_cover.jpg"
+
 # Direct link to the epub in the public downloads bucket — shown as an
 # on-page button immediately after a successful signup, independent of the
 # welcome email (see layouts/partials/course-enroll-form.html).
-download_url: "https://downloads.michaelferrara.org/TODO-story-filename.epub"
+download_url: "https://downloads.michaelferrara.org/neon-tan/neon_tan.epub"
 download_text: "Download now"
 
 # Optional heading above the repeated signup form at the bottom of the page.
 repeat_cta_heading: "Want the story?"
 ---
+The world is stranger than it looks and more meaningful than it lets on.
 
-TODO: Michael's landing-page copy goes here.
+You know this.
+
+Sign up to my mailing list and I'll send you a story about an AI, a wisecracking seagull, and a song that needs to be heard.