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/components/calendar/EventCard.tsx

@@ -0,0 +1,32 @@
+import type { Event } from "@mosaic/shared";
+import { formatTime } from "@/lib/utils/date-format";
+
+interface EventCardProps {
+  event: Event;
+}
+
+export function EventCard({ event }: EventCardProps) {
+  return (
+    <div className="bg-white p-3 rounded-lg border-l-4 border-blue-500 shadow-sm hover:shadow-md transition-shadow">
+      <div className="flex justify-between items-start mb-1">
+        <h3 className="font-semibold text-gray-900">{event.title}</h3>
+        {event.allDay ? (
+          <span className="text-xs text-gray-500 px-2 py-1 bg-gray-100 rounded">
+            All day
+          </span>
+        ) : (
+          <span className="text-xs text-gray-500">
+            {formatTime(event.startTime)}
+            {event.endTime && ` - ${formatTime(event.endTime)}`}
+          </span>
+        )}
+      </div>
+      {event.description && (
+        <p className="text-sm text-gray-600 mb-2">{event.description}</p>
+      )}
+      {event.location && (
+        <p className="text-xs text-gray-500">📍 {event.location}</p>
+      )}
+    </div>
+  );
+}