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/core/persistence.js

@@ -78,6 +78,24 @@ export function loadSettings() {
             }
 
             updateExtensionSettings(savedSettings);
+
+            // Perform settings migrations based on version
+            const currentVersion = extensionSettings.settingsVersion || 1;
+            let settingsChanged = false;
+
+            // Migration to version 2: Enable dynamic weather for existing users
+            if (currentVersion < 2) {
+                console.log('[RPG Companion] Migrating settings to version 2 (enabling dynamic weather)');
+                extensionSettings.enableDynamicWeather = true;
+                extensionSettings.settingsVersion = 2;
+                settingsChanged = true;
+            }
+
+            // Save migrated settings
+            if (settingsChanged) {
+                saveSettings();
+            }
+
             // console.log('[RPG Companion] Settings loaded:', extensionSettings);
         } else {
             // console.log('[RPG Companion] No saved settings found, using defaults');