integrate repl into astro website

+ update build and setup tasks + workflow
+ move repl test folder to root
+ move docs and repl to website/src

test/shared.test.mjs

@@ -0,0 +1,17 @@
+import { queryCode } from '../runtime.mjs';
+import { describe, it } from 'vitest';
+import data from './dbdump.json';
+
+describe('renders shared tunes', async () => {
+  data.forEach(({ id, code, hash }) => {
+    const url = `https://strudel.tidalcycles.org/?${hash}`;
+    it(`shared tune ${id} ${url}`, async ({ expect }) => {
+      if (code.includes('import(')) {
+        console.log('skip', url);
+        return;
+      }
+      const haps = await queryCode(code, 1);
+      expect(haps).toMatchSnapshot();
+    });
+  });
+});