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/app/layout.tsx

@@ -17,6 +17,8 @@ import { PwaRegister } from "@/components/pwa-register";
 import { InstallPrompt } from "@/components/install-prompt";
 import { AppShell } from "@/components/app-shell";
 import { AppToaster } from "@/components/app-toaster";
+import { AssistantBubble } from "@/modules/agent/components/assistant-bubble";
+import { isLlmConfigured } from "@/lib/llm";
 import { DEFAULT_THEME, navStyleToDataNav } from "@/modules/_core/themes";
 import type { Palette, ThemeMode, FontPair, Density, NavStyle } from "@/modules/_core/themes";
 
@@ -99,6 +101,7 @@ export default async function RootLayout({ children }: { children: React.ReactNo
   let navStyle: NavStyle = DEFAULT_THEME.navStyle;
   let userDashboards: DashboardMeta[] = [];
   let signedIn = false;
+  let assistantEnabled = false;
 
   const session = await auth();
   if (session?.user?.id) {
@@ -110,6 +113,7 @@ export default async function RootLayout({ children }: { children: React.ReactNo
         themeFontPair: users.themeFontPair,
         themeDensity: users.themeDensity,
         themeNavStyle: users.themeNavStyle,
+        assistantEnabled: users.assistantEnabled,
       })
       .from(users)
       .where(eq(users.id, session.user.id))
@@ -120,6 +124,7 @@ export default async function RootLayout({ children }: { children: React.ReactNo
       fontPair = row.themeFontPair as FontPair;
       density = row.themeDensity as Density;
       navStyle = row.themeNavStyle as NavStyle;
+      assistantEnabled = row.assistantEnabled;
     }
     userDashboards = await db
       .select({
@@ -172,6 +177,9 @@ export default async function RootLayout({ children }: { children: React.ReactNo
           <CommandPalette />
           <InstallPrompt />
           <PwaRegister />
+          {signedIn && assistantEnabled && session?.user?.id ? (
+            <AssistantBubble configured={isLlmConfigured()} userId={session.user.id} />
+          ) : null}
           <AppToaster position="bottom-right" />
         </QuickAddProvider>
       </body>