feat(renderer): AsciiGeneratorDialog (figlet text-to-ASCII-art)

src/renderer/lib/figlet.ts

@@ -0,0 +1,14 @@
+import figlet from 'figlet';
+import type { Fonts } from 'figlet';
+
+export const FIGLET_FONTS = ['Standard', 'Big', 'Small', 'Banner', 'Doom', 'Slant', 'Block'] as const;
+export type FigletFont = typeof FIGLET_FONTS[number];
+
+export function figletText(text: string, font: FigletFont): Promise<string> {
+  return new Promise((resolve, reject) => {
+    figlet.text(text, { font }, (err, result) => {
+      if (err) reject(err);
+      else resolve(result ?? '');
+    });
+  });
+}