fix(manacore/web): fix entity registration hang + registry type errors

- Make entity registration lazy (ensureEntitiesRegistered) to avoid
  circular imports at module load time
- Re-enable cross-module drop target in AppPage
- Fix Component type in app-registry to accept any props (AnyComponent)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/manacore/apps/web/src/lib/components/workbench/AppPage.svelte

@@ -9,9 +9,17 @@
 	import { getAppEntry } from './app-registry';
 	import type { Component } from 'svelte';
 	import { dropTarget } from '@manacore/shared-ui/dnd';
-	import { getEntity, getEntityByDragType, canDrop, executeDrop } from '$lib/entities';
+	import {
+		getEntity,
+		getEntityByDragType,
+		canDrop,
+		executeDrop,
+		ensureEntitiesRegistered,
+	} from '$lib/entities';
 	import type { DragPayload } from '@manacore/shared-ui/dnd';
 
+	ensureEntitiesRegistered();
+
 	interface Props {
 		appId: string;
 		widthPx: number;
@@ -39,8 +47,8 @@
 	let appColor = $derived(appEntry?.color ?? '#6B7280');
 
 	// ── Cross-module drop target ────────────────────────────
-	// TODO: re-enable after fixing entity descriptor hang
-	let acceptedDropTypes: string[] = [];
+	let targetEntity = $derived(getEntity(appId));
+	let acceptedDropTypes = $derived(targetEntity?.acceptsDropFrom ?? []);
 
 	function handleCrossModuleDrop(payload: DragPayload) {
 		const sourceEntity = getEntityByDragType(payload.type);

apps/manacore/apps/web/src/lib/components/workbench/app-registry.ts

@@ -5,10 +5,11 @@
  * for in-panel navigation (detail, create, edit, etc.).
  */
 
-import type { Component } from 'svelte';
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+type AnyComponent = import('svelte').Component<any, any>;
 
 export interface ViewEntry {
-	load: () => Promise<{ default: Component }>;
+	load: () => Promise<{ default: AnyComponent }>;
 }
 
 export interface AppEntry {
@@ -16,7 +17,7 @@ export interface AppEntry {
 	name: string;
 	color: string;
 	/** Default view loader (list/main view). */
-	load: () => Promise<{ default: Component }>;
+	load: () => Promise<{ default: AnyComponent }>;
 	/** Named views for in-panel navigation. Fallback: { list: load }. */
 	views?: Record<string, ViewEntry>;
 }

apps/manacore/apps/web/src/lib/entities/index.ts

@@ -11,7 +11,13 @@ export {
 	getAllEntities,
 } from './registry';
 
-// Register module entities (side-effect imports)
-import '$lib/modules/todo/entity';
-import '$lib/modules/calendar/entity';
-import '$lib/modules/contacts/entity';
+// Lazy entity registration — avoids circular imports at module load time.
+let registered = false;
+
+export function ensureEntitiesRegistered(): void {
+	if (registered) return;
+	registered = true;
+	import('$lib/modules/todo/entity');
+	import('$lib/modules/calendar/entity');
+	import('$lib/modules/contacts/entity');
+}