Major refactor: Multi-user Chrome MCP extension with remote server architecture

app/chrome-extension/entrypoints/content.ts

@@ -1,4 +1,44 @@
 export default defineContentScript({
-  matches: ['*://*.google.com/*'],
-  main() {},
+  matches: ['<all_urls>'],
+  main() {
+    // Content script is now properly configured for all URLs
+    // The actual functionality is handled by dynamically injected scripts
+    // This ensures the content script context is available for communication
+    console.log('Chrome MCP Extension content script loaded');
+
+    // Make user ID available globally on any page
+    setupUserIdAccess();
+  },
 });
+
+async function setupUserIdAccess() {
+  try {
+    // Get user ID from background script
+    const response = await chrome.runtime.sendMessage({ type: 'getCurrentUserId' });
+
+    if (response && response.success && response.userId) {
+      // Make user ID available globally on the page
+      (window as any).chromeExtensionUserId = response.userId;
+
+      // Also store in a custom event for pages that need it
+      window.dispatchEvent(
+        new CustomEvent('chromeExtensionUserIdReady', {
+          detail: { userId: response.userId },
+        }),
+      );
+
+      // Store in sessionStorage for easy access
+      try {
+        sessionStorage.setItem('chromeExtensionUserId', response.userId);
+      } catch (e) {
+        // Ignore storage errors (some sites block this)
+      }
+
+      console.log('Chrome Extension User ID available:', response.userId);
+    } else {
+      console.log('Chrome Extension: No user ID available (not connected to server)');
+    }
+  } catch (error) {
+    console.error('Chrome Extension: Failed to get user ID:', error);
+  }
+}