fix: correct wHEZ asset ID from 0 to 2

tokenWrapper pallet on Asset Hub creates wHEZ as Asset ID 2, not 0.

Asset IDs on Asset Hub:
- Asset 1: PEZ
- Asset 2: wHEZ (via tokenWrapper)
- Asset 1000: wUSDT

Updated:
- shared/constants/index.ts: KNOWN_TOKENS
- shared/lib/wallet.ts: ASSET_IDS.WHEZ default
- AccountBalance.tsx: pool queries
- InitializeHezPoolModal.tsx: balance query

shared/constants/index.ts

@@ -47,11 +47,16 @@ export const KURDISTAN_COLORS = {
 } as const;
 
 /**
- * Known tokens on the Pezkuwi blockchain
+ * Known tokens on the Pezkuwi blockchain (Asset Hub)
+ *
+ * Asset IDs on Asset Hub:
+ * - Asset 1: PEZ (Pezkuwi Token)
+ * - Asset 2: wHEZ (Wrapped HEZ via tokenWrapper)
+ * - Asset 1000: wUSDT (Wrapped USDT)
  */
 export const KNOWN_TOKENS: Record<number, TokenInfo> = {
-  0: {
-    id: 0,
+  2: {
+    id: 2,
     symbol: 'wHEZ',
     name: 'Wrapped HEZ',
     decimals: 12,

shared/lib/wallet.ts

@@ -32,16 +32,17 @@ export const CHAIN_CONFIG = {
 };
 
 // ========================================
-// SUBSTRATE ASSET IDs (Assets Pallet)
+// SUBSTRATE ASSET IDs (Assets Pallet on Asset Hub)
 // ========================================
 // ⚠️ IMPORTANT: HEZ is the native token and does NOT have an Asset ID
 // Only wrapped/asset tokens are listed here
 //
-// Asset ID Allocation:
-// - 0-999: Reserved for protocol tokens (wHEZ, PEZ, etc.)
-// - 1000+: Bridged/wrapped external assets (wUSDT, etc.)
+// Asset ID Allocation on Asset Hub:
+// - Asset 1: PEZ (Pezkuwi Token)
+// - Asset 2: wHEZ (Wrapped HEZ via tokenWrapper pallet)
+// - Asset 1000: wUSDT (Wrapped USDT)
 export const ASSET_IDS = {
-  WHEZ: parseInt(getEnv('VITE_ASSET_WHEZ', '0')),  // Wrapped HEZ
+  WHEZ: parseInt(getEnv('VITE_ASSET_WHEZ', '2')),  // Wrapped HEZ (tokenWrapper creates Asset 2)
   PEZ: parseInt(getEnv('VITE_ASSET_PEZ', '1')),    // PEZ utility token
   WUSDT: parseInt(getEnv('VITE_ASSET_WUSDT', '1000')), // Wrapped USDT (6 decimals, Asset ID 1000)
   USDT: parseInt(getEnv('VITE_ASSET_USDT', '3')),