OshinMankar/ai-marketing-decision-intelligence-platform ? reverse-engineered prompt

Build me a marketing decision intelligence web app called MarketLens that helps a team go from campaign data to clear actions in one place.

I want users to be able to sign in, upload campaign data from CSV or Excel, check that the data is valid, preview it, and then see a dashboard with the main marketing numbers like spend, revenue, ROAS, conversions, clicks, CTR, CPC, and conversion rate. The dashboard should show trends, campaign comparisons, filters, and simple attention signals so it is easy to spot what is doing well and what is not.

Add an AI section where users can ask questions in plain English like why a campaign is underperforming or which campaign should get more budget, and get useful explanations, not just short answers. Then turn those insights into prioritized recommendations with a clear reason and expected impact, and let users mark them as done, review, or dismiss.

Also include a report page that creates a clean executive summary and lets users export a PDF. Keep the human decision maker in control, and if you need to look up current docs online, go ahead.