Speed up Nostr login and fix list sync, signer persistence, and feed registration

The NIP-07 login flow was extremely slow because list decryption (blocks,
subscriptions, hashtag preferences) started before the signer was ready.
On page refresh, all three services failed with "permission-required" and
scheduled 3-second retry delays, adding 6-10 seconds to every login.

Key fixes:
- List loading now waits for the permission pre-grant to complete before
  attempting decryption, ensuring the signer is available on first try
- Extension wait timeout increased from 3s to 5s for slower extensions
- Decrypt timeouts reduced from 20s to 10s (signer is guaranteed ready)
- Auto-login now forwards authType/providerId from saved profiles
- Storage tab unlock falls back to ensureActiveSignerForPubkey when the
  global signer is not yet registered
- Watch history feed registration adds defensive re-registration and
  try/catch fallback to prevent "Feed not registered" errors
- Decryption scheme cache TTL extended from 10 minutes to 2 hours
- ensureExtensionPermissions waits for extension injection when there
  are outstanding permissions to request (was returning immediately)

https://claude.ai/code/session_01T4wwPu7m5qp1Nxx3H2v57j

js/nostr/decryptionSchemeCache.js

@@ -10,7 +10,11 @@
  * login path where all three services decrypt simultaneously.
  */
 
-const DECRYPTION_CACHE_TTL_MS = 10 * 60 * 1000; // 10 minutes
+// Extended from 10 minutes to 2 hours. The cache is cleared on logout, so
+// there's no privacy concern with a longer TTL. A short TTL caused redundant
+// scheme probing during normal browsing sessions, triggering unnecessary
+// NIP-07 extension calls that slow down background list re-syncs.
+const DECRYPTION_CACHE_TTL_MS = 2 * 60 * 60 * 1000; // 2 hours
 
 /** @type {Map<string, { scheme: string, timestamp: number }>} */
 const cache = new Map();