Emdash source with visual editor image upload fix

Fixes:
1. media.ts: wrap placeholder generation in try-catch
2. toolbar.ts: check r.ok, display error message in popover

packages/admin/src/lib/api/bylines.ts

@@ -0,0 +1,87 @@
+import {
+	API_BASE,
+	apiFetch,
+	parseApiResponse,
+	throwResponseError,
+	type FindManyResult,
+} from "./client.js";
+
+export interface BylineSummary {
+	id: string;
+	slug: string;
+	displayName: string;
+	bio: string | null;
+	avatarMediaId: string | null;
+	websiteUrl: string | null;
+	userId: string | null;
+	isGuest: boolean;
+	createdAt: string;
+	updatedAt: string;
+}
+
+export interface BylineInput {
+	slug: string;
+	displayName: string;
+	bio?: string | null;
+	avatarMediaId?: string | null;
+	websiteUrl?: string | null;
+	userId?: string | null;
+	isGuest?: boolean;
+}
+
+export interface BylineCreditInput {
+	bylineId: string;
+	roleLabel?: string | null;
+}
+
+export async function fetchBylines(options?: {
+	search?: string;
+	isGuest?: boolean;
+	userId?: string;
+	cursor?: string;
+	limit?: number;
+}): Promise<FindManyResult<BylineSummary>> {
+	const params = new URLSearchParams();
+	if (options?.search) params.set("search", options.search);
+	if (options?.isGuest !== undefined) params.set("isGuest", String(options.isGuest));
+	if (options?.userId) params.set("userId", options.userId);
+	if (options?.cursor) params.set("cursor", options.cursor);
+	if (options?.limit) params.set("limit", String(options.limit));
+
+	const url = `${API_BASE}/admin/bylines${params.toString() ? `?${params}` : ""}`;
+	const response = await apiFetch(url);
+	return parseApiResponse<FindManyResult<BylineSummary>>(response, "Failed to fetch bylines");
+}
+
+export async function fetchByline(id: string): Promise<BylineSummary> {
+	const response = await apiFetch(`${API_BASE}/admin/bylines/${id}`);
+	return parseApiResponse<BylineSummary>(response, "Failed to fetch byline");
+}
+
+export async function createByline(input: BylineInput): Promise<BylineSummary> {
+	const response = await apiFetch(`${API_BASE}/admin/bylines`, {
+		method: "POST",
+		headers: { "Content-Type": "application/json" },
+		body: JSON.stringify(input),
+	});
+	return parseApiResponse<BylineSummary>(response, "Failed to create byline");
+}
+
+export async function updateByline(
+	id: string,
+	input: Partial<BylineInput>,
+): Promise<BylineSummary> {
+	const response = await apiFetch(`${API_BASE}/admin/bylines/${id}`, {
+		method: "PUT",
+		headers: { "Content-Type": "application/json" },
+		body: JSON.stringify(input),
+	});
+	return parseApiResponse<BylineSummary>(response, "Failed to update byline");
+}
+
+export async function deleteByline(id: string): Promise<void> {
+	const response = await apiFetch(`${API_BASE}/admin/bylines/${id}`, {
+		method: "DELETE",
+	});
+	if (!response.ok) await throwResponseError(response, "Failed to delete byline");
+}