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/tsdown.config.ts

@@ -0,0 +1,44 @@
+import { transformAsync } from "@babel/core";
+import type { Plugin } from "rolldown";
+import { defineConfig } from "tsdown";
+
+const JS_TS_RE = /\.[jt]sx?$/;
+
+function linguiMacroPlugin(): Plugin {
+	return {
+		name: "lingui-macro",
+		transform: {
+			filter: { id: JS_TS_RE },
+			async handler(code: string, id: string) {
+				if (!code.includes("@lingui")) return;
+				const result = await transformAsync(code, {
+					filename: id,
+					plugins: ["@lingui/babel-plugin-lingui-macro"],
+					parserOpts: { plugins: ["jsx", "typescript"] },
+				});
+				if (!result?.code) return;
+				return { code: result.code, map: result.map ?? undefined };
+			},
+		},
+	};
+}
+
+export default defineConfig({
+	entry: ["src/index.ts", "src/locales/index.ts"],
+	format: ["esm"],
+	dts: true,
+	clean: true,
+	platform: "browser",
+	plugins: [linguiMacroPlugin()],
+	// @tiptap/suggestion is intentionally bundled (devDependency)
+	inlineOnly: false,
+	external: [
+		"react",
+		"react-dom",
+		"react/jsx-runtime",
+		"react/jsx-dev-runtime",
+		// Keep TanStack external - Vite in consumer project will need to resolve these
+		"@tanstack/react-router",
+		"@tanstack/react-query",
+	],
+});