feat(#37-41): Add domains, ideas, relationships, agents, widgets schema

Schema additions for issues #37-41:

New models:
- Domain (#37): Life domains (work, marriage, homelab, etc.)
- Idea (#38): Brain dumps with pgvector embeddings
- Relationship (#39): Generic entity linking (blocks, depends_on)
- Agent (#40): ClawdBot agent tracking with metrics
- AgentSession (#40): Conversation session tracking
- WidgetDefinition (#41): HUD widget registry
- UserLayout (#41): Per-user dashboard configuration

Updated models:
- Task, Event, Project: Added domainId foreign key
- User, Workspace: Added new relations

New enums:
- IdeaStatus: CAPTURED, PROCESSING, ACTIONABLE, ARCHIVED, DISCARDED
- RelationshipType: BLOCKS, BLOCKED_BY, DEPENDS_ON, etc.
- AgentStatus: IDLE, WORKING, WAITING, ERROR, TERMINATED
- EntityType: Added IDEA, DOMAIN

Migration: 20260129182803_add_domains_ideas_agents_widgets

apps/web/src/app/page.tsx

@@ -1,14 +1,26 @@
-import { Button } from "@mosaic/ui";
+"use client";
+
+import { useEffect } from "react";
+import { useRouter } from "next/navigation";
+import { useAuth } from "@/lib/auth/auth-context";
 
 export default function Home() {
+  const router = useRouter();
+  const { isAuthenticated, isLoading } = useAuth();
+
+  useEffect(() => {
+    if (!isLoading) {
+      if (isAuthenticated) {
+        router.push("/tasks");
+      } else {
+        router.push("/login");
+      }
+    }
+  }, [isAuthenticated, isLoading, router]);
+
   return (
-    <main className="flex min-h-screen flex-col items-center justify-center p-24">
-      <h1 className="text-4xl font-bold mb-8">Mosaic Stack</h1>
-      <p className="text-lg text-gray-600 mb-8">Welcome to the Mosaic Stack monorepo</p>
-      <div className="flex gap-4">
-        <Button variant="primary">Get Started</Button>
-        <Button variant="secondary">Learn More</Button>
-      </div>
-    </main>
+    <div className="flex min-h-screen items-center justify-center">
+      <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-gray-900"></div>
+    </div>
   );
 }