feat: journal dashboard widgets, agent polish, and edit-mode live previews

Journal dashboard widgets and quick-add; rich-text quick-add dialogs.

Dashboard draft sync for live edit previews; assistant bubble + API tools.

Journal UX: stress slider, mood grid, query cap fix.

src/components/dashboard-greeting.tsx

@@ -1,5 +1,3 @@
-"use client";
-
 const greetingForHour = (h: number) =>
   h < 5 ? "Up early" : h < 12 ? "Good morning" : h < 18 ? "Good afternoon" : "Good evening";
 
@@ -18,7 +16,9 @@ export function DashboardGreeting({ firstName }: { firstName: string }) {
         {greeting}
         {firstName && `, ${firstName}`}.
       </h1>
-      <p className="muted mt-1 text-[13px]">{today}</p>
+      <p className="muted mt-1 text-[13px]" suppressHydrationWarning>
+        {today}
+      </p>
     </div>
   );
 }