init: add source code from src.zip

src/commands/export/index.ts

@@ -0,0 +1,11 @@
+import type { Command } from '../../commands.js'
+
+const exportCommand = {
+  type: 'local-jsx',
+  name: 'export',
+  description: 'Export the current conversation to a file or clipboard',
+  argumentHint: '[filename]',
+  load: () => import('./export.js'),
+} satisfies Command
+
+export default exportCommand