Add dev logging for watch history updates

js/nostr.js

@@ -2558,6 +2558,35 @@ class NostrClient {
       this.scheduleWatchHistoryRepublish(normalizedActor, persistedItems);
     }
 
+    if (isDevMode) {
+      const latestItem = persistedItems[0] || null;
+      const latestPointerKey = pointerKey(latestItem);
+      const latestPointerSummary = latestPointerKey
+        ? latestPointerKey.length > 32
+          ? `${latestPointerKey.slice(0, 32)}…`
+          : latestPointerKey
+        : null;
+      const actorPreview =
+        normalizedActor.length > 16
+          ? `${normalizedActor.slice(0, 8)}…${normalizedActor.slice(-4)}`
+          : normalizedActor;
+      const summary = {
+        actor: actorPreview,
+        itemCount: persistedItems.length,
+        snapshot: snapshotId,
+        latestPointer: latestPointerSummary,
+        latestWatchedAt: Number.isFinite(latestItem?.watchedAt)
+          ? new Date(Math.max(0, Math.floor(latestItem.watchedAt))).toISOString()
+          : null,
+      };
+
+      if (overallSuccess) {
+        console.info("[nostr] Watch history snapshot updated:", summary);
+      } else {
+        console.warn("[nostr] Watch history snapshot publish incomplete:", summary);
+      }
+    }
+
     const pointerEvent =
       signedIndexEvent ||
       chunkResults.find((chunk) => chunk.success)?.event ||