feat(*): svelte 5 panel view sharing the gateway ui, obsidian theme, preview and tests

src/shims/sonner.ts

@@ -0,0 +1,18 @@
+import { Notice } from "obsidian";
+
+const SHORT_MS = 4000;
+const LONG_MS = 8000;
+
+function show(message: string, duration: number): Notice {
+  return new Notice(message, duration);
+}
+
+// ``svelte-sonner`` as the shared panel code imports it, backed by Obsidian
+// notices; the esbuild resolver points the bare import here.
+export const toast = {
+  error: (message: string) => show(`Beaver: ${message}`, LONG_MS),
+  info: (message: string) => show(message, SHORT_MS),
+  message: (message: string) => show(message, SHORT_MS),
+  success: (message: string) => show(message, SHORT_MS),
+  warning: (message: string) => show(message, LONG_MS),
+};