Create a single self-contained HTML file that implements a simple habit tracker…

Create a single self-contained HTML file that implements a simple habit tracker. The app should allow users to add habits, mark them as done for the day, and see a streak counter. Use only HTML, CSS, and vanilla JavaScript: no libraries, frameworks, build tools, CDNs, APIs, external assets, or network requests. Inline all CSS/JS. It must work when opened via file://. The app should have a clean, modern UI with a pastel color scheme. Include at least 3 pre-loaded example habits. Users should be able to add custom habits, check them off, and see their streak count. Save data to localStorage so progress persists. Deliver exactly one file: index.html, under 10 MB.