[API] Forgejo API /api/forgejo/v1

(cherry picked from commit 20b5669269)

web_src/js/standalone/forgejo-swagger.js

@@ -0,0 +1,22 @@
+import SwaggerUI from 'swagger-ui-dist/swagger-ui-es-bundle.js';
+import 'swagger-ui-dist/swagger-ui.css';
+
+window.addEventListener('load', async () => {
+  const url = document.getElementById('swagger-ui').getAttribute('data-source');
+
+  const ui = SwaggerUI({
+    url: url,
+    dom_id: '#swagger-ui',
+    deepLinking: true,
+    docExpansion: 'none',
+    defaultModelRendering: 'model', // don't show examples by default, because they may be incomplete
+    presets: [
+      SwaggerUI.presets.apis
+    ],
+    plugins: [
+      SwaggerUI.plugins.DownloadUrl
+    ]
+  });
+
+  window.ui = ui;
+});