feat: add library media viewers

surfsense_web/features/artifacts-library/ui/library-image-viewer.tsx

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+"use client";
+
+import { useQuery } from "@tanstack/react-query";
+import { Image, ImageLoading } from "@/components/tool-ui/image";
+import { imageGenerationsApiService } from "@/lib/apis/image-generations-api.service";
+
+function extractImageSrc(responseData: Record<string, unknown> | null | undefined): string | null {
+	const data = (responseData as { data?: unknown } | null | undefined)?.data;
+	if (!Array.isArray(data) || data.length === 0) return null;
+	const first = data[0] as { url?: string; b64_json?: string };
+	if (first?.url) return first.url;
+	if (first?.b64_json) return `data:image/png;base64,${first.b64_json}`;
+	return null;
+}
+
+export function LibraryImageViewer({ imageId, prompt }: { imageId: number; prompt: string }) {
+	const { data, isLoading, error } = useQuery({
+		queryKey: ["image-generation-detail", imageId],
+		queryFn: () => imageGenerationsApiService.getDetail(imageId),
+	});
+
+	if (isLoading) return <ImageLoading title="Loading image" maxWidth="640px" />;
+
+	const src = extractImageSrc(data?.response_data);
+	if (error || !src) {
+		return (
+			<p className="px-6 py-10 text-center text-sm text-muted-foreground">
+				{data?.error_message || "Image not available"}
+			</p>
+		);
+	}
+
+	return (
+		<Image
+			id={`library-image-${imageId}`}
+			assetId={String(imageId)}
+			src={src}
+			alt={prompt}
+			title={prompt}
+			domain="ai-generated"
+			ratio="auto"
+			maxWidth="640px"
+		/>
+	);
+}

surfsense_web/features/artifacts-library/ui/media-viewer-dialog.tsx

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+"use client";
+
+import dynamic from "next/dynamic";
+import { Dialog, DialogContent, DialogTitle } from "@/components/ui/dialog";
+import { Spinner } from "@/components/ui/spinner";
+import { cn } from "@/lib/utils";
+import type { LibraryArtifact, LibraryArtifactKind } from "../model/artifact";
+import { LibraryImageViewer } from "./library-image-viewer";
+
+const ViewerFallback = () => (
+	<div className="flex items-center justify-center py-12">
+		<Spinner />
+	</div>
+);
+
+const PodcastPlayer = dynamic(
+	() => import("@/components/tool-ui/podcast/player").then((m) => m.PodcastPlayer),
+	{ ssr: false, loading: ViewerFallback }
+);
+
+const VideoPresentationViewer = dynamic(
+	() => import("@/components/tool-ui/video-presentation").then((m) => m.VideoPresentationViewer),
+	{ ssr: false, loading: ViewerFallback }
+);
+
+// `stretch` overrides the players' inline-chat max-w/margins so they fill the dialog.
+function dialogLayout(kind: LibraryArtifactKind): { width: string; stretch: boolean } {
+	if (kind === "video") return { width: "max-w-4xl", stretch: true };
+	if (kind === "podcast") return { width: "max-w-2xl", stretch: true };
+	return { width: "max-w-2xl", stretch: false };
+}
+
+function MediaViewerBody({ artifact }: { artifact: LibraryArtifact }) {
+	if (artifact.kind === "podcast") {
+		return <PodcastPlayer podcastId={artifact.entityId} title={artifact.title} />;
+	}
+	if (artifact.kind === "video") {
+		return <VideoPresentationViewer presentationId={artifact.entityId} title={artifact.title} />;
+	}
+	return <LibraryImageViewer imageId={artifact.entityId} prompt={artifact.title} />;
+}
+
+/**
+ * Modal viewer for inline-media artifacts (podcast, video, image). Reports and
+ * resumes use the shared report panel instead and never reach this dialog.
+ */
+export function MediaViewerDialog({
+	artifact,
+	onClose,
+}: {
+	artifact: LibraryArtifact | null;
+	onClose: () => void;
+}) {
+	const layout = artifact ? dialogLayout(artifact.kind) : null;
+
+	return (
+		<Dialog
+			open={artifact !== null}
+			onOpenChange={(open) => {
+				if (!open) onClose();
+			}}
+		>
+			<DialogContent
+				className={cn(
+					// pt-12 keeps content clear of the absolute top-right close button.
+					"flex max-h-[88vh] w-[95vw] flex-col overflow-y-auto pt-12",
+					layout?.width ?? "max-w-2xl"
+				)}
+			>
+				<DialogTitle className="sr-only">{artifact?.title ?? "Artifact"}</DialogTitle>
+				{artifact ? (
+					<div
+						className={cn(
+							layout?.stretch
+								? "w-full [&>div]:!my-0 [&>div]:!max-w-none [&>div>*]:!max-w-none"
+								: "flex justify-center"
+						)}
+					>
+						<MediaViewerBody artifact={artifact} />
+					</div>
+				) : null}
+			</DialogContent>
+		</Dialog>
+	);
+}