refactor: migrate documentation to support multi-language structure with i18n integration

documentation/source.config.ts

@@ -1,22 +1,27 @@
-import { defineConfig, defineDocs, frontmatterSchema, metaSchema } from 'fumadocs-mdx/config';
+import {
+	defineConfig,
+	defineDocs,
+	frontmatterSchema,
+	metaSchema,
+} from "fumadocs-mdx/config";
 
 // You can customise Zod schemas for frontmatter and `meta.json` here
 // see https://fumadocs.dev/docs/mdx/collections
 export const docs = defineDocs({
-  dir: 'content/docs',
-  docs: {
-    schema: frontmatterSchema,
-    postprocess: {
-      includeProcessedMarkdown: true,
-    },
-  },
-  meta: {
-    schema: metaSchema,
-  },
+	dir: "content/docs",
+	docs: {
+		schema: frontmatterSchema,
+		postprocess: {
+			includeProcessedMarkdown: true,
+		},
+	},
+	meta: {
+		schema: metaSchema,
+	},
 });
 
 export default defineConfig({
-  mdxOptions: {
-    // MDX options
-  },
+	mdxOptions: {
+		// MDX options
+	},
 });