chore: import upstream snapshot with attribution

apps/sim/lib/content/schema.ts

@@ -0,0 +1,79 @@
+import { z } from 'zod'
+
+export const AuthorSchema = z
+  .object({
+    id: z.string().min(1),
+    name: z.string().min(1),
+    url: z.string().url().optional(),
+    xHandle: z.string().optional(),
+    avatarUrl: z.string().optional(), // allow relative or absolute
+  })
+  .strict()
+
+export type Author = z.infer<typeof AuthorSchema>
+
+/**
+ * Frontmatter schema shared by every content section (blog, library, and any
+ * future section). Section-specific behavior lives in the section's registry
+ * instantiation, not in this schema.
+ */
+export const ContentFrontmatterSchema = z
+  .object({
+    slug: z.string().min(1),
+    title: z.string().min(5),
+    description: z.string().min(20),
+    date: z.coerce.date(),
+    updated: z.coerce.date().optional(),
+    authors: z.array(z.string()).min(1),
+    readingTime: z.number().int().positive().optional(),
+    tags: z.array(z.string()).default([]),
+    ogImage: z.string().min(1), // local path (e.g. /blog/<slug>/cover.jpg) - rendered via next/image without `unoptimized`
+    ogAlt: z.string().optional(),
+    about: z.array(z.string()).optional(),
+    timeRequired: z.string().optional(),
+    faq: z
+      .array(
+        z.object({
+          q: z.string().min(1),
+          a: z.string().min(1),
+        })
+      )
+      .optional(),
+    canonical: z.string().url(),
+    draft: z.boolean().default(false),
+    featured: z.boolean().default(false),
+  })
+  .strict()
+
+export type ContentFrontmatter = z.infer<typeof ContentFrontmatterSchema>
+
+export interface ContentMeta {
+  slug: string
+  title: string
+  description: string
+  date: string // ISO
+  updated?: string // ISO
+  author: Author
+  authors: Author[]
+  readingTime?: number
+  tags: string[]
+  ogImage: string
+  ogAlt?: string
+  about?: string[]
+  timeRequired?: string
+  faq?: { q: string; a: string }[]
+  wordCount?: number
+  canonical: string
+  draft: boolean
+  featured: boolean
+}
+
+export interface ContentPost extends ContentMeta {
+  Content: React.ComponentType
+  headings?: { text: string; id: string }[]
+}
+
+export interface TagWithCount {
+  tag: string
+  count: number
+}