style: format entire codebase with prettier

SETUP.md

@@ -16,6 +16,7 @@ Visit `http://localhost:3000`
 Choose one:
 
 **Local PostgreSQL:**
+
 ```bash
 sudo apt install postgresql
 sudo -u postgres createdb wishlist
@@ -26,6 +27,7 @@ GRANT ALL PRIVILEGES ON DATABASE wishlist TO wishlistuser;
 ```
 
 **Docker PostgreSQL:**
+
 ```bash
 docker run --name wishlist-postgres \
   -e POSTGRES_DB=wishlist \
@@ -57,15 +59,18 @@ Visit `http://localhost:5173`
 ## Troubleshooting
 
 **Connection errors:**
+
 - Check PostgreSQL is running: `sudo systemctl status postgresql`
 - Test connection: `psql "postgresql://user:pass@localhost:5432/wishlist"`
 
 **Port in use:**
+
 ```bash
 bun run dev -- --port 3000
 ```
 
 **Schema changes:**
+
 ```bash
 bun run db:push
 ```