feat: enhance canvas and layout components with new features and improvements

- Added remote image patterns to the Next.js configuration for enhanced image handling.
- Updated TypeScript configuration to exclude the 'implement' directory.
- Refactored layout component to fetch initial authentication token and pass it to Providers.
- Replaced CanvasToolbar with CanvasSidebar for improved UI layout and functionality.
- Enhanced Canvas component with new drag-and-drop file upload capabilities and batch node movement.
- Updated various node components to support new status handling and improved user interactions.
- Added debounced saving for note and prompt nodes to optimize performance.

implement/nodes-list-patch.ts

@@ -0,0 +1,37 @@
+/**
+ * PATCH für convex/nodes.ts
+ *
+ * Ersetze die bestehende `list` Query mit dieser Version.
+ * Der einzige Unterschied: Für Nodes mit einem `storageId` im data-Objekt
+ * wird die Storage-URL aufgelöst und als `data.url` zurückgegeben.
+ */
+
+export const list = query({
+  args: { canvasId: v.id("canvases") },
+  handler: async (ctx, { canvasId }) => {
+    const user = await requireAuth(ctx);
+    await getCanvasOrThrow(ctx, canvasId, user.userId);
+
+    const nodes = await ctx.db
+      .query("nodes")
+      .withIndex("by_canvas", (q) => q.eq("canvasId", canvasId))
+      .collect();
+
+    // Storage-URLs für Nodes mit storageId auflösen
+    return Promise.all(
+      nodes.map(async (node) => {
+        const data = node.data as Record<string, unknown> | undefined;
+        if (data?.storageId) {
+          const url = await ctx.storage.getUrl(
+            data.storageId as Id<"_storage">
+          );
+          return {
+            ...node,
+            data: { ...data, url: url ?? undefined },
+          };
+        }
+        return node;
+      })
+    );
+  },
+});