feat: better article parsing + html dom base

src/interfaces.ts

@@ -1,11 +1,18 @@
-export interface MarkdownAttributes {
-  title?: string
-  draft?: string
-  thumbnail?: string
-  path?: string
-}
-
 export interface MarkdownData {
-  attributes: MarkdownAttributes
+  attributes: Record<string, unknown>
+  html: string
+}
+
+export interface ArticleMetadata {
+  path: string
+  title: string
+  date: Date
+  author: string
+  thumbnail: string
+  draft: boolean
+}
+
+export interface Article {
+  metadata: ArticleMetadata
   html: string
 }