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/plugins/atproto/src/content.ts

@@ -0,0 +1,36 @@
+/**
+ * Shared content helpers for ATProto outputs.
+ *
+ * These helpers intentionally stay small and boring so standard.site and
+ * Bluesky can share path/field lookup behavior without coupling their
+ * output-specific formatting logic.
+ */
+
+export function getString(obj: Record<string, unknown>, key: string): string | undefined {
+	const value = obj[key];
+	return typeof value === "string" && value.length > 0 ? value : undefined;
+}
+
+export function getContentData(content: Record<string, unknown>): Record<string, unknown> {
+	return content.data && typeof content.data === "object"
+		? (content.data as Record<string, unknown>)
+		: {};
+}
+
+export function getContentString(
+	content: Record<string, unknown>,
+	key: string,
+): string | undefined {
+	return getString(content, key) || getString(getContentData(content), key);
+}
+
+export function buildContentPath(
+	collection: string | undefined,
+	content: Record<string, unknown>,
+): string | undefined {
+	const slug = getContentString(content, "slug");
+	if (!slug) return undefined;
+
+	if (!collection || collection === "pages") return `/${slug}`;
+	return `/${collection}/${slug}`;
+}