🎨 Palette: Add UX tooltips to financial parameters

[aarjava]

💡 What: Added informative tooltips to complex statistical inputs (e.g. basis points, quantiles) in the sidebar.
🎯 Why: Without concrete examples, these inputs cause user confusion.
♿ Accessibility: Improves cognitive accessibility by providing immediate, in-context examples (e.g., 10 bps = 0.10%).

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PR created automatically by Jules for task 5372546930422674348 started by @aarjava

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