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/utils/migration.js

@@ -15,6 +15,7 @@
 const DEFAULT_INVENTORY_V2 = {
     version: 2,
     onPerson: "None",
+    clothing: "None",
     stored: {},
     assets: "None"
 };
@@ -29,6 +30,17 @@ const DEFAULT_INVENTORY_V2 = {
 export function migrateInventory(inventory) {
     // Case 1: Already v2 format (has version property and is an object)
     if (inventory && typeof inventory === 'object' && inventory.version === 2) {
+        // Check if clothing field exists (v2.1 upgrade)
+        if (!inventory.hasOwnProperty('clothing')) {
+            // console.log('[RPG Companion Migration] Upgrading v2 inventory to v2.1 (adding clothing field)');
+            inventory.clothing = "None";
+            return {
+                inventory: inventory,
+                migrated: true,
+                source: 'v2-upgrade'
+            };
+        }
+
         // console.log('[RPG Companion Migration] Inventory already v2, no migration needed');
         return {
             inventory: inventory,
@@ -66,6 +78,7 @@ export function migrateInventory(inventory) {
             inventory: {
                 version: 2,
                 onPerson: inventory,
+                clothing: "None",
                 stored: {},
                 assets: "None"
             },