feat: minor fixes

src/content/config.ts

@@ -3,8 +3,13 @@ import { z, defineCollection } from "astro:content";
 const blogCollection = defineCollection({
     schema: z.object({
         title: z.string(),
-        tags: z.array(z.string()),
-        cover: z.string().optional(),
+        published: z.date(),
+        description: z.string().optional(),
+        cover: z.object({
+            url: z.string(),
+            alt: z.string(),
+        }),
+        tags: z.array(z.string()).optional(),
     })
 })
 export const collections = {