Update token symbol from PZKW/PZK to HEZ across all components

Changed all references to the project token from PZKW/PZK to HEZ:

- DelegationManager.tsx: Updated token symbol in comments, delegate cards, and user delegations
- DelegateProfile.tsx: Updated min/max delegation placeholders and display
- ProposalWizard.tsx: Updated budget input placeholder and review display
- TreasuryOverview.tsx: Updated treasury balance display
- TransactionModal.tsx: Updated send transaction title, description, and amount label
- WalletButton.tsx: Updated balance display in button and dropdown

All components now consistently use HEZ as the token symbol.

web/src/components/delegation/DelegateProfile.tsx

@@ -159,7 +159,7 @@ const DelegateProfile: React.FC = () => {
                 <Input
                   id="minDelegation"
                   type="number"
-                  placeholder="Min PZK"
+                  placeholder="Min HEZ"
                   value={profileData.minDelegation}
                   onChange={(e) => setProfileData({...profileData, minDelegation: e.target.value})}
                 />
@@ -169,7 +169,7 @@ const DelegateProfile: React.FC = () => {
                 <Input
                   id="maxDelegation"
                   type="number"
-                  placeholder="Max PZK"
+                  placeholder="Max HEZ"
                   value={profileData.maxDelegation}
                   onChange={(e) => setProfileData({...profileData, maxDelegation: e.target.value})}
                 />
@@ -231,7 +231,7 @@ const DelegateProfile: React.FC = () => {
           </Card>
           <Card>
             <CardContent className="p-4">
-              <div className="text-2xl font-bold text-yellow-600">0 PZK</div>
+              <div className="text-2xl font-bold text-yellow-600">0 HEZ</div>
               <div className="text-sm text-gray-600">{t('delegation.totalReceived')}</div>
             </CardContent>
           </Card>
@@ -259,7 +259,7 @@ const DelegateProfile: React.FC = () => {
           <div>
             <h4 className="font-semibold mb-2">{t('delegation.delegationLimits')}</h4>
             <p className="text-gray-700">
-              Min: {profileData.minDelegation} PZK | Max: {profileData.maxDelegation} PZK
+              Min: {profileData.minDelegation} HEZ | Max: {profileData.maxDelegation} HEZ
             </p>
           </div>
         </div>

web/src/components/delegation/DelegationManager.tsx

@@ -22,7 +22,7 @@ const DelegationManager: React.FC = () => {
   const [delegationAmount, setDelegationAmount] = useState('');
   const [delegationPeriod, setDelegationPeriod] = useState('3months');
 
-  // Format token amounts from blockchain units (assuming 12 decimals for PZKW)
+  // Format token amounts from blockchain units (assuming 12 decimals for HEZ)
   const formatTokenAmount = (amount: string | number) => {
     const value = typeof amount === 'string' ? BigInt(amount) : BigInt(amount);
     return formatNumber(Number(value) / 1e12, 2);
@@ -175,7 +175,7 @@ const DelegationManager: React.FC = () => {
                               </span>
                               <span className="flex items-center gap-1">
                                 <Users className="w-3 h-3" />
-                                {formatTokenAmount(delegate.totalDelegated)} PZKW delegated
+                                {formatTokenAmount(delegate.totalDelegated)} HEZ delegated
                               </span>
                               <span className="flex items-center gap-1">
                                 <Users className="w-3 h-3" />
@@ -209,7 +209,7 @@ const DelegationManager: React.FC = () => {
                       <Input
                         id="amount"
                         type="number"
-                        placeholder="Enter PZK amount"
+                        placeholder="Enter HEZ amount"
                         value={delegationAmount}
                         onChange={(e) => setDelegationAmount(e.target.value)}
                       />
@@ -275,7 +275,7 @@ const DelegationManager: React.FC = () => {
                           <h4 className="font-semibold">{delegation.delegate}</h4>
                           <p className="text-xs text-gray-500 font-mono mb-2">{delegation.delegateAddress}</p>
                           <div className="flex items-center gap-3 text-sm text-gray-600 mt-1">
-                            <span>{formatTokenAmount(delegation.amount)} PZKW</span>
+                            <span>{formatTokenAmount(delegation.amount)} HEZ</span>
                             <Badge variant="secondary">Conviction: {delegation.conviction}x</Badge>
                             {delegation.category && <Badge variant="secondary">{delegation.category}</Badge>}
                           </div>

web/src/components/proposals/ProposalWizard.tsx

@@ -208,7 +208,7 @@ const ProposalWizard: React.FC<ProposalWizardProps> = ({ onComplete, onCancel })
                     type="number"
                     value={proposalData.budget}
                     onChange={(e) => setProposalData({...proposalData, budget: e.target.value})}
-                    placeholder="Amount in PZK"
+                    placeholder="Amount in HEZ"
                   />
                 </div>
               )}
@@ -308,7 +308,7 @@ const ProposalWizard: React.FC<ProposalWizardProps> = ({ onComplete, onCancel })
                 {proposalData.budget && (
                   <div>
                     <span className="font-semibold">{t('proposals.fields.budget')}:</span>
-                    <p className="text-gray-700">{proposalData.budget} PZK</p>
+                    <p className="text-gray-700">{proposalData.budget} HEZ</p>
                   </div>
                 )}
               </div>

web/src/components/treasury/TreasuryOverview.tsx

@@ -91,7 +91,7 @@ export const TreasuryOverview: React.FC = () => {
           Live Blockchain Data
         </Badge>
         <span className="text-sm text-muted-foreground">
-          {proposals.length} active proposals • {metrics.totalBalance.toFixed(2)} PZKW in treasury
+          {proposals.length} active proposals • {metrics.totalBalance.toFixed(2)} HEZ in treasury
         </span>
       </div>
 

web/src/components/wallet/TransactionModal.tsx

@@ -94,11 +94,11 @@ export const TransactionModal: React.FC<TransactionModalProps> = ({
         <DialogHeader>
           <DialogTitle className="flex items-center gap-2">
             <Send className="h-5 w-5 text-kesk" />
-            {type === 'send' ? 'Send PZK' : type === 'vote' ? 'Cast Vote' : 'Delegate Voting Power'}
+            {type === 'send' ? 'Send HEZ' : type === 'vote' ? 'Cast Vote' : 'Delegate Voting Power'}
           </DialogTitle>
           <DialogDescription>
-            {type === 'send' 
-              ? 'Send PZK tokens to another address'
+            {type === 'send'
+              ? 'Send HEZ tokens to another address'
               : type === 'vote'
               ? 'Submit your vote for the proposal'
               : 'Delegate your voting power to another address'}
@@ -120,7 +120,7 @@ export const TransactionModal: React.FC<TransactionModalProps> = ({
                   />
                 </div>
                 <div>
-                  <Label htmlFor="amount">Amount (PZK)</Label>
+                  <Label htmlFor="amount">Amount (HEZ)</Label>
                   <Input
                     id="amount"
                     type="number"

web/src/components/wallet/WalletButton.tsx

@@ -55,7 +55,7 @@ export const WalletButton: React.FC = () => {
             <Wallet className="h-4 w-4 text-kesk" />
             <div className="text-left">
               <div className="text-sm font-medium">{formatAddress(address!)}</div>
-              <div className="text-xs text-muted-foreground">{formatBalance(balance)} PZK</div>
+              <div className="text-xs text-muted-foreground">{formatBalance(balance)} HEZ</div>
             </div>
             {!isCorrectNetwork && (
               <Badge variant="destructive" className="ml-2 bg-sor">
@@ -74,7 +74,7 @@ export const WalletButton: React.FC = () => {
         </div>
         <div className="px-2 py-1.5">
           <div className="text-sm text-muted-foreground">Balance</div>
-          <div className="text-sm font-medium">{formatBalance(balance)} PZK</div>
+          <div className="text-sm font-medium">{formatBalance(balance)} HEZ</div>
         </div>
         <div className="px-2 py-1.5">
           <div className="text-sm text-muted-foreground">Network</div>