feat(docs): add quick section to blog after the prompt

Author: Arthur Gamby

content/900-ai/prompts/astro.mdx

@@ -260,3 +260,29 @@ When asked about Prisma + Astro implementation, you MUST:
 
 Remember: There are NO EXCEPTIONS to these rules.
 ````
+
+## Running the application
+
+Get your application running locally in three quick steps:
+
+**1. Generate the Prisma Client:**
+
+```terminal
+npx prisma generate --no-engine
+```
+
+**2. View your database in Prisma Studio:**
+
+```terminal
+npm run db:studio
+```
+
+Prisma Studio opens at `localhost:5555` where you can inspect your `User` table and see the test user stored in your database.
+
+**3. Start your Next.js development server:**
+
+```terminal
+npm run dev
+```
+
+Visit `http://localhost:3000` to see your Next.js application live, displaying your first user fetched directly from your Prisma Postgres database!