fix: upgrade ALTCHA widget to v2.3.0 and rewrite component

- Upgrade from v0.5.0 to v2.3.0 (latest)
- Use dangerouslySetInnerHTML for proper web component rendering
- Add MutationObserver for reliable event binding
- Enable debug mode on widget to diagnose issues
- Simplify component API with onVerified/onError callbacks

admin/src/app/login/page.tsx

@@ -17,14 +17,14 @@ export default function LoginPage() {
   const { login } = useAuth();
   const router = useRouter();
 
-  const handleAltchaStateChange = useCallback((state: any) => {
-    if (state.state === 'verified' && state.payload) {
-      setAltchaToken(state.payload);
-      setAltchaVerified(true);
-    } else {
-      setAltchaToken('');
-      setAltchaVerified(false);
-    }
+  const handleAltchaVerified = useCallback((payload: string) => {
+    setAltchaToken(payload);
+    setAltchaVerified(true);
+  }, []);
+
+  const handleAltchaError = useCallback(() => {
+    setAltchaToken('');
+    setAltchaVerified(false);
   }, []);
 
   const performLogin = useCallback(async () => {
@@ -107,7 +107,8 @@ export default function LoginPage() {
             <div>
               <Altcha 
                 challengeurl="https://api.sojorn.net/api/v1/admin/altcha-challenge"
-                onStateChange={handleAltchaStateChange}
+                onVerified={handleAltchaVerified}
+                onError={handleAltchaError}
               />
             </div>
             <button

admin/src/components/Altcha.tsx

@@ -1,58 +1,71 @@
 'use client';
 
-import { useEffect, useRef, useState } from 'react';
+import { useEffect, useRef, useCallback } from 'react';
 
 interface AltchaProps {
   challengeurl: string;
-  onStateChange?: (state: any) => void;
+  onVerified?: (payload: string) => void;
+  onError?: () => void;
 }
 
-export default function Altcha({ challengeurl, onStateChange }: AltchaProps) {
+export default function Altcha({ challengeurl, onVerified, onError }: AltchaProps) {
   const widgetRef = useRef<HTMLDivElement>(null);
-  const [loaded, setLoaded] = useState(false);
+  const scriptLoaded = useRef(false);
+
+  const handleStateChange = useCallback((e: Event) => {
+    const detail = (e as CustomEvent).detail;
+    if (detail?.state === 'verified' && detail?.payload) {
+      onVerified?.(detail.payload);
+    } else if (detail?.state === 'error') {
+      onError?.();
+    }
+  }, [onVerified, onError]);
 
   useEffect(() => {
-    // Load ALTCHA widget script
+    if (scriptLoaded.current) return;
+    scriptLoaded.current = true;
+
     const script = document.createElement('script');
-    script.src = 'https://cdn.jsdelivr.net/npm/altcha@0.5.0/dist/altcha.min.js';
+    script.src = 'https://cdn.jsdelivr.net/npm/altcha@2.3.0/dist/altcha.min.js';
     script.type = 'module';
     script.async = true;
-    script.onload = () => setLoaded(true);
     document.head.appendChild(script);
-
-    return () => {
-      if (script.parentNode) {
-        script.parentNode.removeChild(script);
-      }
-    };
   }, []);
 
   useEffect(() => {
-    if (!loaded || !widgetRef.current) return;
+    const container = widgetRef.current;
+    if (!container) return;
 
-    const widget = widgetRef.current.querySelector('altcha-widget');
-    if (!widget) return;
-
-    const handleStateChange = (event: any) => {
-      if (onStateChange) {
-        onStateChange(event.detail);
+    const observer = new MutationObserver(() => {
+      const widget = container.querySelector('altcha-widget');
+      if (widget) {
+        widget.addEventListener('statechange', handleStateChange);
+        observer.disconnect();
       }
-    };
+    });
 
-    widget.addEventListener('statechange', handleStateChange);
+    observer.observe(container, { childList: true, subtree: true });
+
+    // Also try immediately in case widget already exists
+    const widget = container.querySelector('altcha-widget');
+    if (widget) {
+      widget.addEventListener('statechange', handleStateChange);
+      observer.disconnect();
+    }
 
     return () => {
-      widget.removeEventListener('statechange', handleStateChange);
+      observer.disconnect();
+      const w = container.querySelector('altcha-widget');
+      if (w) {
+        w.removeEventListener('statechange', handleStateChange);
+      }
     };
-  }, [loaded, onStateChange]);
+  }, [handleStateChange]);
 
   return (
-    <div ref={widgetRef}>
-      <altcha-widget
-        challengeurl={challengeurl}
-        hidefooter="true"
-        hidelogo="true"
-      />
-    </div>
+    <div ref={widgetRef} dangerouslySetInnerHTML={{
+      __html: `<altcha-widget challengeurl="${challengeurl}" debug></altcha-widget>`
+    }} />
   );
 }
+