Species schema v content.config.ts (mcp)

src/content.config.ts (72r): defineCollection + glob loader + schema({image}) s zod v4. Fields: taxonomie, IUCN enum, size tuple, distribution/diet arrays, lifespan, hero s image() helperem, gallery?, sources min 2 (enum typu), updatedAt. Import z z astro/zod (ne astro:content — deprecated v Astro 6). Zod v4 API: z.url() misto .url().