Added Sentence Meaning for concise AI explanations in the user's saved word-meaning language. Added opt-in interactive YouTube captions with contextual word meanings, AI-generated examples, automatic pause/resume controls, and direct saving to LugalVault. Improved multilingual language detection, AI Fill language handling, long-meaning editing, and extension stability. AI-backed actions continue to follow the account's plan, daily allowance, safety-rate-limit, and wallet rules.