Add isCacheFull() method to controller interface for prefetcher
stopping condition, specify pause flag mechanism for live priority,
and clarify replaceChildren() applies to all subtitle root clears.
Covers three optimizations to minimize subtitle-to-annotation latency:
subtitle prefetching with prioritized sliding window, batched annotation
passes, and DOM template pooling via cloneNode.
- Stats dashboard redesign design and implementation plans
- Episode detail and Anki card link design
- Internal knowledge base restructure
- Backlog tasks for testing, verification, and occurrence tracking