chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

web_src/js/webcomponents/polyfills.ts

@@ -0,0 +1,15 @@
+export function weakRefClass() {
+  const weakMap = new WeakMap();
+  return class {
+    constructor(target: any) {
+      weakMap.set(this, target);
+    }
+    deref() {
+      return weakMap.get(this);
+    }
+  };
+}
+
+if (!window.WeakRef) {
+  window.WeakRef = weakRefClass() as any;
+}