perf: remove seenEvent call for cached events (#372)

* chore: bump to beta.66

* chore: bump to beta.66

* perf: remove seenEvent call for cached events

seenEvent uses an LRU cache with expiration that causes 0.24-0.64ms per
call. When loading thousands of events from cache, this adds up to
seconds of delay (e.g., 1.4s for 5700 events).

Cached events don't need seenEvent tracking because:
- seenEvent is designed to prevent duplicate processing when the same
  event arrives from multiple relays during live subscriptions
- Cached events are loaded from local storage, not arriving from relays
- The performance cost far outweighs any benefit for cached data

Before: processTime ~3690ms for 5700 events
After: processTime ~22ms (162x improvement)

Author: pablof7z

.gitignore

@@ -61,3 +61,6 @@ svelte/examples/basic-feed/public/
 **/baseline-timing.ts
 **/current-timing.ts
 .playwright-mcp
+
+# Git worktrees
+.worktrees/

blossom/example/react/package.json

@@ -9,9 +9,9 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@nostr-dev-kit/ndk": "3.0.0-beta.64",
-    "@nostr-dev-kit/blossom": "8.0.0-beta.64",
-    "@nostr-dev-kit/react": "1.3.13-beta.64",
+    "@nostr-dev-kit/ndk": "3.0.0-beta.66",
+    "@nostr-dev-kit/blossom": "8.0.0-beta.66",
+    "@nostr-dev-kit/react": "1.3.13-beta.66",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
   },

blossom/example/svelte/package.json

@@ -9,10 +9,10 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@nostr-dev-kit/blossom": "8.0.0-beta.64",
-    "@nostr-dev-kit/ndk": "3.0.0-beta.64",
-    "@nostr-dev-kit/sessions": "1.0.0-beta.64",
-    "@nostr-dev-kit/svelte": "4.0.0-beta.64"
+    "@nostr-dev-kit/blossom": "8.0.0-beta.66",
+    "@nostr-dev-kit/ndk": "3.0.0-beta.66",
+    "@nostr-dev-kit/sessions": "1.0.0-beta.66",
+    "@nostr-dev-kit/svelte": "4.0.0-beta.66"
   },
   "devDependencies": {
     "@sveltejs/vite-plugin-svelte": "^6.2.1",

blossom/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@nostr-dev-kit/blossom",
-  "version": "8.0.0-beta.64",
+  "version": "8.0.0-beta.66",
   "description": "Blossom protocol support for NDK (Nostr Development Kit)",
   "main": "dist/index.js",
   "module": "dist/index.js",
@@ -42,7 +42,7 @@
     "debug": "^4.3.7"
   },
   "peerDependencies": {
-    "@nostr-dev-kit/ndk": "3.0.0-beta.64"
+    "@nostr-dev-kit/ndk": "3.0.0-beta.66"
   },
   "devDependencies": {
     "@types/debug": "^4.1.12",