v2.1: Add dynamic weather effects, clothing inventory, and bug fixes

Features:
- Add dynamic weather effects system (snow, rain, mist, sunshine, storm, wind, blizzard)
- Add separate Clothing tab in inventory system
- Weather effects auto-update based on Info Box weather field
- Combined effects for storm (rain+lightning) and blizzard (snow+wind)

Improvements:
- Settings migration system for automatic feature enablement
- Weather effects positioned behind chat interface (z-index: 1)
- Dynamic weather enabled by default for new users

Bug Fixes:
- Fix tab visibility issues (disabled tabs now properly hide)
- Fix theme-aware borders (remove hardcoded blue colors)
- Fix double scrollbar in Edit Trackers window
- Fix scroll position jumping when editing Present Characters
- Fix dynamic weather toggle hiding issue

Technical:
- Update inventory schema to v2.1 with clothing field
- Add automatic migration for existing v2 inventories
- Update parsers and prompts to handle clothing separately
- Add translations (EN/ZH-TW) for new features

src/systems/ui/theme.js

@@ -84,16 +84,19 @@ export function updateFeatureTogglesVisibility() {
     const $htmlToggle = $('#rpg-html-toggle-wrapper');
     const $spotifyToggle = $('#rpg-spotify-toggle-wrapper');
     const $snowflakesToggle = $('#rpg-snowflakes-toggle-wrapper');
+    const $dynamicWeatherToggle = $('#rpg-dynamic-weather-toggle-wrapper');
 
     // Show/hide individual toggles
     $htmlToggle.toggle(extensionSettings.showHtmlToggle);
     $spotifyToggle.toggle(extensionSettings.showSpotifyToggle);
     $snowflakesToggle.toggle(extensionSettings.showSnowflakesToggle);
+    $dynamicWeatherToggle.toggle(extensionSettings.showDynamicWeatherToggle);
 
     // Hide entire row if all toggles are hidden
     const anyVisible = extensionSettings.showHtmlToggle ||
                       extensionSettings.showSpotifyToggle ||
-                      extensionSettings.showSnowflakesToggle;
+                      extensionSettings.showSnowflakesToggle ||
+                      extensionSettings.showDynamicWeatherToggle;
     $featuresRow.toggle(anyVisible);
 }