🎨 Palette: Add tooltips with concrete examples to statistical inputs

[aarjava]

💡 What: Added help parameters with concrete examples (e.g., "10 bps = 0.10%") to statistical and financial input widgets (st.slider and st.number_input) in the sidebar.
🎯 Why: Abstract tooltips or no tooltips for financial parameters make it difficult for users to gauge scale or expected format. Providing concrete examples directly in the widget significantly improves data entry accuracy and understanding.
📸 Before/After: Screenshots were taken during verification to demonstrate the new tooltips (e.g., Portfolio Value tooltip).
♿ Accessibility: Improved usability and comprehension for all users by providing clear context and examples for numerical inputs. Also added an entry to .Jules/palette.md to document this learning.

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PR created automatically by Jules for task 7576141868954476649 started by @aarjava

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