Update AI coach calibration, fix streak animation speed, add dashboard features and target filtering

src/app/dashboard/layout.tsx

@@ -398,6 +398,14 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
           </div>
         </header>
 
+        {/* Free Trial Banner */}
+        {trialInfo.isTrialActive && (
+          <div className="bg-primary text-primary-foreground px-4 py-2.5 text-center text-sm font-bold flex justify-center items-center gap-2 shadow-sm shrink-0 z-30">
+            <span className="size-2 rounded-full bg-primary-foreground animate-pulse"></span>
+            15 Days Free Trial — Day {trialInfo.trialDayNumber}
+          </div>
+        )}
+
         {/* Scrollable page body */}
         <main className="flex-1 overflow-y-auto relative bg-background/50">
           {children}