```

feat: add market stats endpoint, wallet integration, and browser wallet link

- Update devnet genesis timestamp to 1767000206
- Add market statistics endpoint with 24h volume, price change, and payment counts
- Add wallet balance and info API endpoints in exchange router
- Remove unused SessionDep dependencies from exchange endpoints
- Integrate real AITBC wallet extension connection in trade-exchange UI
- Add market data fetching with API fallback for price and volume display
- Add cache-busting query

extensions/aitbc-wallet/injected.js

@@ -0,0 +1,106 @@
+// Injected script that provides the AITBC wallet API to the dApp
+(function() {
+    // Create the wallet API object
+    const aitbcWallet = {
+        // Check if wallet is available
+        isAvailable: function() {
+            return true;
+        },
+        
+        // Connect to wallet
+        connect: async function() {
+            return new Promise((resolve, reject) => {
+                const requestId = Date.now().toString();
+                
+                // Send request to content script
+                window.postMessage({
+                    type: 'AITBC_WALLET_REQUEST',
+                    id: requestId,
+                    method: 'connect'
+                }, '*');
+                
+                // Listen for response
+                const messageHandler = function(event) {
+                    if (event.data.type === 'AITBC_WALLET_RESPONSE' && event.data.id === requestId) {
+                        window.removeEventListener('message', messageHandler);
+                        if (event.data.response.error) {
+                            reject(new Error(event.data.response.error));
+                        } else {
+                            resolve(event.data.response);
+                        }
+                    }
+                };
+                
+                window.addEventListener('message', messageHandler);
+                
+                // Timeout after 30 seconds
+                setTimeout(() => {
+                    window.removeEventListener('message', messageHandler);
+                    reject(new Error('Connection timeout'));
+                }, 30000);
+            });
+        },
+        
+        // Get account address
+        getAccount: async function() {
+            const accounts = await this.request({ method: 'accounts' });
+            return accounts[0];
+        },
+        
+        // Get balance
+        getBalance: async function(address) {
+            return this.request({ method: 'getBalance', params: { address } });
+        },
+        
+        // Send transaction
+        sendTransaction: async function(to, amount, data = null) {
+            return this.request({ 
+                method: 'sendTransaction', 
+                params: { to, amount, data } 
+            });
+        },
+        
+        // Sign message
+        signMessage: async function(message) {
+            return this.request({ method: 'signMessage', params: { message } });
+        },
+        
+        // Generic request method
+        request: async function(payload) {
+            return new Promise((resolve, reject) => {
+                const requestId = Date.now().toString();
+                
+                window.postMessage({
+                    type: 'AITBC_WALLET_REQUEST',
+                    id: requestId,
+                    method: payload.method,
+                    params: payload.params || {}
+                }, '*');
+                
+                const messageHandler = function(event) {
+                    if (event.data.type === 'AITBC_WALLET_RESPONSE' && event.data.id === requestId) {
+                        window.removeEventListener('message', messageHandler);
+                        if (event.data.response.error) {
+                            reject(new Error(event.data.response.error));
+                        } else {
+                            resolve(event.data.response);
+                        }
+                    }
+                };
+                
+                window.addEventListener('message', messageHandler);
+                
+                setTimeout(() => {
+                    window.removeEventListener('message', messageHandler);
+                    reject(new Error('Request timeout'));
+                }, 30000);
+            });
+        }
+    };
+    
+    // Inject the wallet API into the window object
+    window.aitbcWallet = aitbcWallet;
+    
+    // Fire an event to notify the dApp that the wallet is ready
+    window.dispatchEvent(new Event('aitbcWalletReady'));
+})();