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/tests/plugin.test.ts

@@ -0,0 +1,43 @@
+import { describe, it, expect } from "vitest";
+
+import { atprotoPlugin } from "../src/index.js";
+
+describe("atprotoPlugin descriptor", () => {
+	it("returns a valid PluginDescriptor", () => {
+		const descriptor = atprotoPlugin();
+		expect(descriptor.id).toBe("atproto");
+		expect(descriptor.version).toBe("0.1.0");
+		expect(descriptor.entrypoint).toBe("@emdash-cms/plugin-atproto/sandbox");
+		expect(descriptor.adminPages).toHaveLength(1);
+		expect(descriptor.adminWidgets).toHaveLength(1);
+	});
+
+	it("uses standard format", () => {
+		const descriptor = atprotoPlugin();
+		expect(descriptor.format).toBe("standard");
+	});
+
+	it("declares required capabilities", () => {
+		const descriptor = atprotoPlugin();
+		expect(descriptor.capabilities).toContain("read:content");
+		expect(descriptor.capabilities).toContain("network:fetch:any");
+	});
+
+	it("declares the storage used by the sandbox implementation", () => {
+		const descriptor = atprotoPlugin();
+		expect(descriptor.storage).toHaveProperty("records");
+		expect(descriptor.storage!.records!.indexes).toContain("contentId");
+		expect(descriptor.storage!.records!.indexes).toContain("status");
+		expect(descriptor.storage!.records!.indexes).toContain("lastSyncedAt");
+	});
+
+	it("exposes an admin status page and widget", () => {
+		const descriptor = atprotoPlugin();
+		expect(descriptor.adminPages).toEqual([
+			{ path: "/status", label: "AT Protocol", icon: "globe" },
+		]);
+		expect(descriptor.adminWidgets).toEqual([
+			{ id: "sync-status", title: "AT Protocol", size: "third" },
+		]);
+	});
+});