Fix/apiDocsBuild (#989)

* copy api json to docs

* copy api json to docs

* improvements

* fix web build

* mjs > js

web/scripts/generate-openapi.js

@@ -0,0 +1,18 @@
+import { readFileSync } from 'node:fs';
+import { dirname, resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import { generateSpec, writeSpec } from '../node_modules/sveltekit-openapi-generator/dist/generator.js';
+import { openapiOptions } from '../openapi.config.js';
+
+const scriptDir = dirname(fileURLToPath(import.meta.url));
+const webDir = resolve(scriptDir, '..');
+const packageJson = JSON.parse(readFileSync(resolve(webDir, 'package.json'), 'utf-8'));
+const { outputPath, ...generatorOptions } = openapiOptions(packageJson.version);
+
+const spec = generateSpec({
+  rootDir: webDir,
+  ...generatorOptions,
+});
+
+writeSpec(spec, resolve(webDir, outputPath));