release: 4.6.60 bound renderer storyboard cache to 100 entries

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "twitch-vod-manager",
-  "version": "4.6.59",
+  "version": "4.6.60",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "twitch-vod-manager",
-      "version": "4.6.59",
+      "version": "4.6.60",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.6.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "twitch-vod-manager",
-  "version": "4.6.59",
+  "version": "4.6.60",
   "description": "Twitch VOD Manager - Download Twitch VODs easily",
   "main": "dist/main.js",
   "author": "xRangerDE",

src/renderer-vod-hover.ts

@@ -21,6 +21,20 @@ let pendingHoverVodId: string | null = null;
 const HOVER_DEBOUNCE_MS = 220;
 const FRAME_INTERVAL_MS = 600;
 const FRAMES_TO_CYCLE = 4;
+// Bounded cache — each storyboard data URL is ~50-200 KB, so an
+// unbounded cache could balloon to hundreds of MB on a long browsing
+// session through a streamer with thousands of VODs. FIFO eviction
+// keeps the working set fresh without manual cleanup.
+const MAX_CLIENT_STORYBOARD_CACHE = 100;
+
+function rememberStoryboard(vodId: string, sb: VodStoryboard | null): void {
+    vodStoryboardClientCache.set(vodId, sb);
+    if (vodStoryboardClientCache.size > MAX_CLIENT_STORYBOARD_CACHE) {
+        // Map iterator is insertion-ordered — first key is the oldest.
+        const oldestKey = vodStoryboardClientCache.keys().next().value as string | undefined;
+        if (oldestKey !== undefined) vodStoryboardClientCache.delete(oldestKey);
+    }
+}
 
 function ensureVodHoverHandlersBound(): void {
     const grid = document.getElementById('vodGrid');
@@ -85,7 +99,7 @@ async function activateHoverPreview(card: HTMLElement, vodId: string): Promise<v
         } catch (_) {
             storyboard = null;
         }
-        vodStoryboardClientCache.set(vodId, storyboard);
+        rememberStoryboard(vodId, storyboard);
     }
 
     // Cursor may have moved on while we awaited; re-check guard.