chore: reformat schemas and documentation files for consistency

Standardized formatting across database schema files and updated documentation structure to improve clarity and organization.

backend/drizzle.config.ts

@@ -1,5 +1,5 @@
-import { defineConfig } from "drizzle-kit";
 import * as process from "node:process";
+import { defineConfig } from "drizzle-kit";
 
 export default defineConfig({
 	schema: "./src/database/schemas/index.ts",