SIWE auth, API proxy fixes, dashboard, login, usage pages

- SIWE auth flow: challenge/login/logout/me API routes + JWT middleware
- Fixed [...path] catch-all: Kubo proxy with matchRoute() + mapToKuboAPI()
- Fixed session_id → nonce field mismatch in AuthProvider
- Fixed dashboard pins crash: Kubo returns {Keys: {...}}, not array
- Added middleware route guard (307 redirect to /login)
- Added login, register, profile, usage, upload pages
- Added dashboard components (StorageGauge, FreeTierProgress)
- Added SWR hooks + AuthGuard + Providers + Toast/ErrorBoundary
- Added payment integration (smart contract ABI, tiers, tokens)
- Fixed IPNS key listing: Name/Id → name/id mapping
- Added PWA support (manifest, service worker, icons)
- Added tests for helpers, limits, search-index, wallet

src/lib/api.ts

@@ -149,8 +149,12 @@ export interface IPNSKey {
 }
 
 export async function listIPNSKeys(): Promise<IPNSKey[]> {
-  const res = await apiFetch<{ Keys: IPNSKey[] }>('/ipns/keys');
-  return res.Keys || [];
+  const res = await apiFetch<{ Keys: { Name?: string; Id?: string }[] }>('/ipns/keys');
+  if (!res.Keys) return [];
+  return res.Keys.map((k: { Name?: string; Id?: string }) => ({
+    name: k.Name ?? '',
+    id: k.Id ?? '',
+  }));
 }
 
 export async function ipnsPublish(cid: string, key = 'self'): Promise<{ name: string; value: string }> {