```

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-firefox-simple/content.js

@@ -0,0 +1,42 @@
+// Content script for AITBC Wallet Firefox extension
+(function() {
+    // Inject the wallet API into the page
+    const script = document.createElement('script');
+    script.src = browser.runtime.getURL('injected.js');
+    script.onload = function() {
+        this.remove();
+    };
+    (document.head || document.documentElement).appendChild(script);
+    
+    // Create a port to background script
+    const port = browser.runtime.connect({ name: "aitbc-wallet" });
+    
+    // Listen for messages from the injected script
+    window.addEventListener('message', function(event) {
+        // Only accept messages from our own window
+        if (event.source !== window) return;
+        
+        if (event.data.type && event.data.type === 'AITBC_WALLET_REQUEST') {
+            // Add origin to the request
+            const requestWithOrigin = {
+                ...event.data,
+                origin: window.location.origin
+            };
+            // Forward the request to the background script
+            port.postMessage(requestWithOrigin);
+        }
+    });
+    
+    // Listen for responses from background script
+    port.onMessage.addListener(function(response) {
+        // Send the response back to the page
+        window.postMessage({
+            type: 'AITBC_WALLET_RESPONSE',
+            id: response.id,
+            response: {
+                result: response.result,
+                error: response.error
+            }
+        }, '*');
+    });
+})();