fix(blog): add missing mintelP/TLDR renderers, fix iconList, diagram blocks, reduce AI components to 13

- Add mintelP renderer with inline markdown link/marker support (228 broken blocks)
- Add mintelTldr renderer for summary boxes
- Fix iconList to display item.title instead of empty item.description
- Rewire all 6 diagram block types to render via Mermaid
- Remove ai property from 30 non-essential blocks (46 -> 13)
- Tighten MemeCard to 5 verified templates, max 1 per article
- Fix PerformanceChartBlock syntax after ai removal

apps/web/src/payload/blocks/MemeCardBlock.ts

@@ -13,7 +13,7 @@ export const MemeCardBlock: MintelBlock = {
   ai: {
     name: "MemeCard",
     description:
-      'Real meme image from memegen.link. template must be a valid memegen.link ID. IMPORTANT: Captions must be EXTREMELY SARCASTIC and PUNCHY (mocking bad B2B agencies, max 6 words per line). Best templates: drake (2-line prefer/dislike), gru (4-step plan backfire), disastergirl (burning house), fine (this is fine dog). Use German captions. Wrap in div with className="my-8".',
+      "Real meme from memegen.link. ONLY use these templates: drake, distracted-bf, change-my-mind, uno-draw-25, always-has-been. Captions MUST be in German, extremely sarcastic, max 6 words per line. Use pipe | to separate caption lines. Use sparingly: MAX 1 meme per article.",
     usageExample: `<div className="my-8">
   <MemeCard template="drake" captions="47 WordPress Plugins installieren|Eine saubere Serverless Architektur" />
 </div>`,