You are helping the user add settings to their Obsidian plugin.

1. Ask the user what settings they need:
   - Text inputs (API keys, paths, etc.)
   - Number inputs (limits, thresholds)
   - Toggles (boolean options)
   - Dropdowns (predefined choices)
   - Sliders (ranged values)

2. Update the plugin structure:
   - Add settings interface with proper types
   - Update DEFAULT_SETTINGS constant
   - Add settings tab class extending PluginSettingTab
   - Register the settings tab in onload()
   - Implement display() method with Setting components

3. Implement setting controls using Obsidian's Setting API:
   - addText() for text inputs
   - addToggle() for boolean switches
   - addDropdown() for select options
   - addSlider() for numeric ranges
   - addTextArea() for multi-line input

4. Ensure proper saving/loading:
   - Call saveSettings() onChange
   - Use proper TypeScript types

Reference the instruct plugin for comprehensive settings examples.