Add comprehensive API and smart contract documentation with versioning

README.md

@@ -54,6 +54,29 @@ A peer-to-peer cryptocurrency exchange platform for trading across Solana Virtua
 3. Run the development server: `npm run dev`
 4. Connect your wallet to start trading
 
+## 📚 Documentation
+
+### API Documentation
+Comprehensive API and smart contract documentation is available:
+
+- **[Complete API Reference](docs/api/README.md)** - Main API documentation hub
+- **[Smart Contract API](docs/api/smart-contracts.md)** - Detailed smart contract instructions
+- **[Wallet Operations](docs/api/wallet-operations.md)** - Wallet integration patterns
+- **[Account Structures](docs/api/account-structures.md)** - Data structure specifications
+- **[Error Codes](docs/api/error-codes.md)** - Error handling reference
+- **[Transaction Flows](docs/api/transaction-flows.md)** - Implementation examples
+- **[API Changelog](docs/api/CHANGELOG.md)** - Version history and updates
+
+### Quick Start Guides
+- **[Examples Directory](docs/api/examples/)** - Ready-to-use code examples
+- **[Installation Guide](docs/installation-guide.md)** - Detailed setup instructions
+- **[Contributing Guide](docs/contributing.md)** - Development workflow
+
+### Developer Resources
+- **Program ID**: `FKkTQLgBE9vDZqgXKWrXZfAv5HgCQdsjDZDzPfJosPt9`
+- **Documentation Version**: 1.0.0
+- **API Support**: Full smart contract and wallet integration coverage
+
 ## Requirements
 
 - Node.js >= 18.17.0 (required by Next.js 14)

docs/README.md

@@ -224,95 +224,65 @@ The Solana program consists of several key components:
 
 ## API Reference
 
-### Frontend Components API
-
-#### NotificationContext
-```javascript
-// Import
-import { useNotifications } from './components/notifications/NotificationContext';
-
-// Usage
-const { 
-  notifications,
-  notifySuccess,
-  notifyError,
-  markAsRead,
-  removeNotification
-} = useNotifications();
-
-// Methods
-notifySuccess(title, message, options);
-notifyError(title, message, options);
-markAsRead(notificationId);
-removeNotification(notificationId);
-```
-
-#### OfferCreation
-```javascript
-// Import
-import OfferCreation from './components/OfferCreation';
-
-// Props
-<OfferCreation
-  onSubmit={handleSubmit}
-  initialValues={initialValues}
-  isLoading={isLoading}
-/>
-```
-
-#### UserProfile
-```javascript
-// Import
-import UserProfile from './components/UserProfile';
-
-// Props
-<UserProfile
-  userId={userId}
-  isCurrentUser={isCurrentUser}
-/>
-```
-
-### Smart Contract API
-
-#### Creating an Offer
-```javascript
-// Import
-import { createOffer } from './api/solana';
-
-// Usage
-const result = await createOffer({
-  assetType: 'SOL',
-  amount: 1.5,
-  price: 100,
-  paymentMethods: ['USDC', 'Bank Transfer'],
-  terms: 'Payment must be completed within 30 minutes'
+### 📚 Comprehensive API Documentation
+
+We provide extensive API documentation for developers integrating with SVMP2P:
+
+#### **[Complete API Documentation Hub](api/README.md)**
+Central hub for all API documentation with version information and navigation.
+
+#### Core API References
+- **[Smart Contract API](api/smart-contracts.md)** - Complete instruction reference with parameters, behaviors, and examples
+- **[Account Structures](api/account-structures.md)** - Detailed account specifications and TypeScript interfaces
+- **[Wallet Operations](api/wallet-operations.md)** - Wallet connection, transaction signing, and security patterns
+- **[Error Codes](api/error-codes.md)** - Complete error reference with recovery strategies
+- **[Events](api/events.md)** - Smart contract event monitoring and handling
+- **[Transaction Flows](api/transaction-flows.md)** - End-to-end implementation examples
+
+#### Developer Resources
+- **[Code Examples](api/examples/)** - Ready-to-use TypeScript examples
+- **[API Changelog](api/CHANGELOG.md)** - Version history and migration guides
+- **Program ID**: `FKkTQLgBE9vDZqgXKWrXZfAv5HgCQdsjDZDzPfJosPt9`
+- **Current API Version**: 1.0.0
+
+### Legacy Documentation
+- **[Basic Smart Contract API](smart-contract-api.md)** - Basic API overview (see comprehensive docs above)
+- **[Frontend Components](frontend-components.md)** - UI component documentation
+- **[Enhanced Reward System](enhanced-reward-system.md)** - Reward system details
+
+### Quick Start Examples
+
+#### Creating an Offer (TypeScript)
+```typescript
+import { Program, BN } from '@coral-xyz/anchor';
+import { createAndListOffer } from './api/examples/basic-trading/create-offer';
+
+const result = await createAndListOffer(program, seller, {
+  amount: new BN(1 * LAMPORTS_PER_SOL), // 1 SOL
+  fiatAmount: new BN(50000), // $500.00 in cents
+  currency: 'USD',
+  paymentMethod: 'Bank transfer - Chase Bank'
 });
 ```
 
-#### Accepting an Offer
-```javascript
-// Import
-import { acceptOffer } from './api/solana';
+#### Wallet Connection
+```typescript
+import { useWallet } from '@solana/wallet-adapter-react';
 
-// Usage
-const result = await acceptOffer({
-  offerId: 'offer123',
-  buyerWallet: 'buyer_wallet_address'
-});
-```
+const { connect, connected, publicKey } = useWallet();
 
-#### Completing a Trade
-```javascript
-// Import
-import { completeTrade } from './api/solana';
-
-// Usage
-const result = await completeTrade({
-  tradeId: 'trade123',
-  feedback: 'Smooth transaction, great trader!'
-});
+const handleConnect = async () => {
+  try {
+    await connect();
+    console.log('Connected:', publicKey?.toString());
+  } catch (error) {
+    console.error('Connection failed:', error);
+  }
+};
 ```
 
+For complete examples and advanced patterns, see the [examples directory](api/examples/).
+
 ## Troubleshooting
 
 ### Common Issues