feat: enhance canvas functionality with new node types and improved data handling

- Added support for a new "compare" node type to facilitate side-by-side image comparisons.
- Updated AI image and prompt nodes to include aspect ratio handling for better image generation.
- Enhanced canvas toolbar to include export functionality for canvas data.
- Improved data resolution for compare nodes by resolving incoming edges and updating node data accordingly.
- Refactored frame node to support dynamic resizing and exporting capabilities.
- Introduced debounced saving for prompt node to optimize performance during user input.

convex/_generated/api.d.ts

@@ -13,6 +13,7 @@ import type * as auth from "../auth.js";
 import type * as canvases from "../canvases.js";
 import type * as credits from "../credits.js";
 import type * as edges from "../edges.js";
+import type * as export_ from "../export.js";
 import type * as helpers from "../helpers.js";
 import type * as http from "../http.js";
 import type * as nodes from "../nodes.js";
@@ -31,6 +32,7 @@ declare const fullApi: ApiFromModules<{
   canvases: typeof canvases;
   credits: typeof credits;
   edges: typeof edges;
+  export: typeof export_;
   helpers: typeof helpers;
   http: typeof http;
   nodes: typeof nodes;