Move source manager from combatant area to side panel

Source management now opens in the right side panel (like bulk import
and stat blocks) instead of rendering inline above the combatant list.
All three panel modes properly clear each other on activation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/src/components/stat-block-panel.tsx

@@ -7,6 +7,7 @@ import type { BulkImportState } from "../hooks/use-bulk-import.js";
 import { useSwipeToDismiss } from "../hooks/use-swipe-to-dismiss.js";
 import { BulkImportPrompt } from "./bulk-import-prompt.js";
 import { SourceFetchPrompt } from "./source-fetch-prompt.js";
+import { SourceManager } from "./source-manager.js";
 import { StatBlock } from "./stat-block.js";
 import { Button } from "./ui/button.js";
 
@@ -32,6 +33,7 @@ interface StatBlockPanelProps {
 	bulkImportState?: BulkImportState;
 	onStartBulkImport?: (baseUrl: string) => void;
 	onBulkImportDone?: () => void;
+	sourceManagerMode?: boolean;
 }
 
 function extractSourceCode(cId: CreatureId): string {
@@ -236,6 +238,7 @@ export function StatBlockPanel({
 	bulkImportState,
 	onStartBulkImport,
 	onBulkImportDone,
+	sourceManagerMode,
 }: StatBlockPanelProps) {
 	const [isDesktop, setIsDesktop] = useState(
 		() => window.matchMedia("(min-width: 1024px)").matches,
@@ -269,7 +272,7 @@ export function StatBlockPanel({
 		});
 	}, [creatureId, creature, isSourceCached]);
 
-	if (!creatureId && !bulkImportMode) return null;
+	if (!creatureId && !bulkImportMode && !sourceManagerMode) return null;
 
 	const sourceCode = creatureId ? extractSourceCode(creatureId) : "";
 
@@ -279,6 +282,10 @@ export function StatBlockPanel({
 	};
 
 	const renderContent = () => {
+		if (sourceManagerMode) {
+			return <SourceManager onCacheCleared={refreshCache} />;
+		}
+
 		if (
 			bulkImportMode &&
 			bulkImportState &&
@@ -324,7 +331,12 @@ export function StatBlockPanel({
 	};
 
 	const creatureName =
-		creature?.name ?? (bulkImportMode ? "Bulk Import" : "Creature");
+		creature?.name ??
+		(sourceManagerMode
+			? "Sources"
+			: bulkImportMode
+				? "Bulk Import"
+				: "Creature");
 
 	if (isDesktop) {
 		return (