Fix SSR hydration issues and finalize deployment config

src/lib/db.ts

@@ -42,10 +42,7 @@ export async function getClient(): Promise<PoolClient> {
   const client = await getPool().connect();
   const release = () => client.release();
 
-  return {
-    ...client,
-    release,
-  };
+  return client as PoolClient & { release: () => void };
 }
 
 // 初始化数据库表
@@ -213,7 +210,7 @@ export async function getDocs(): Promise<any[]> {
     ORDER BY d.created_at DESC
     `
   );
-  return result.rows.map((row) => ({
+  return result.rows.map((row: any) => ({
     title: row.title,
     slug: row.slug,
     description: row.description,