SiddhiRaney/Data_Analyser ? reverse-engineered prompt

Build me a CSV analysis app where someone can upload a spreadsheet file, preview the first few rows right away, and then run a deeper analysis on the full dataset.

I want it to show useful summary stats like row and column counts, detect which columns are numeric or categorical, flag missing values and unique values, and give a few simple insights about the data. After that, it should display charts automatically and let the user switch between different chart types, and choose which columns go on the axes when that makes sense.

Also add a chat area where the user can ask plain language questions about the uploaded data, like comparisons, totals, trends, missing values, duplicates, and outliers, and get answers based on the file they uploaded.

Make it feel clean and modern, with a smooth upload flow and a nice dashboard style layout. If you need to look up current docs or best practices for any library, feel free to do that.