fix: nostrText format — short teaser, URL as the star

Kind 1 notes render differently on every client (Damus, Primal, Amethyst,
Snort, etc). The fix: keep the kind 1 as a 5-line teaser that works as
plain text on any client, with the full formatted issue at the URL.

Issue #001 nostrText trimmed from 14 lines to 4.
Added template comment with rules for all future issues:
- Max 5 content lines before the URL
- No bullet lists
- URL always on its own line
- 3 hashtags max

Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>

src/pages/NewsletterPage.tsx

@@ -62,7 +62,26 @@ export interface NewsletterIssue {
   spotOfTheWeek?: SpotOfTheWeek;
   /** Free-text community section — 2-3 sentences max */
   communityNote: string;
-  /** Plain-text version used for the kind 1 Nostr note */
+  /**
+   * Plain-text teaser posted as a kind 1 Nostr note.
+   *
+   * TEMPLATE (copy this for every new issue):
+   *
+   * 🛹 SkateSpots Weekly #00X
+   *
+   * [One punchy sentence summing up the week — what was the theme?]
+   * [One sentence on the most important thing that shipped.]
+   *
+   * Full issue: https://skate-spots.org/newsletter
+   *
+   * #skateboarding #nostr #skatespots
+   *
+   * Rules:
+   * - Max 5 lines of content before the URL
+   * - No bullet lists — clients render them differently
+   * - URL always on its own line, always last before hashtags
+   * - 3 hashtags max — more looks spammy
+   */
   nostrText: string;
 }
 
@@ -127,20 +146,11 @@ export const NEWSLETTER_ISSUES: NewsletterIssue[] = [
     spotOfTheWeek: undefined,
     communityNote:
       "The relay at wss://goskatespots.nostr1.com is live and growing. Spots, shops, events, coaches, filmers, editors and tours are all flowing through it. Add it to your Nostr client to follow the scene directly.",
-    nostrText: `🛹 SkateSpots Weekly — Issue #001
+    nostrText: `🛹 SkateSpots Weekly #001
 
-Security week. Eight improvements shipped:
+Security week. Fake spot protection, URL sanitization, map clustering, phishing warnings and more — eight improvements shipped to keep the community clean and the map usable.
 
-🔐 Fake spot protection (geohash validation, null island blocked)
-🔐 URL sanitization on shops & profiles
-👑 Official badge for verified founder content
-🗺 Map marker clustering (cities are navigable again)
-🚫 Content length limits across all parsers
-📊 Trusted count on community stats
-🛡 DM phishing warning banner
-⚡ Smart WoT trust filter defaults
-
-Full breakdown: https://skate-spots.org/newsletter
+Full issue: https://skate-spots.org/newsletter
 
 #skateboarding #nostr #skatespots`,
   },