feat: Implement TaskMaster AI Gateway integration with enhanced UX

- Fix Zod schema conversion, update headers, add premium telemetry display, improve user auth flow, and standardize email fields

Functionally complete on this end, mostly polish around user experience and need to add in profile, upgrade/downgrade, etc.

But the AI commands are working off the gateway.

scripts/modules/config-manager.js

@@ -66,9 +66,9 @@ const defaultConfig = {
   },
   account: {
     userId: "1234567890", // Placeholder that triggers auth/init
-    userEmail: "",
+    email: "",
     mode: "byok",
-    telemetryEnabled: false,
+    telemetryEnabled: true,
   },
 };
 
@@ -129,7 +129,6 @@ function _loadAndValidateConfig(explicitRoot = null) {
               : { ...defaults.models.fallback },
         },
         global: { ...defaults.global, ...parsedConfig?.global },
-        ai: { ...defaults.ai, ...parsedConfig?.ai },
         account: { ...defaults.account, ...parsedConfig?.account },
       };
       configSource = `file (${configPath})`; // Update source info
@@ -756,7 +755,7 @@ function getTelemetryEnabled(explicitRoot = null) {
 // Update getUserEmail to use account
 function getUserEmail(explicitRoot = null) {
   const config = getConfig(explicitRoot);
-  return config.account?.userEmail || "";
+  return config.account?.email || "";
 }
 
 // Update getMode function to use account