ScholarScout 1.5.3 adds pipeline minigame, review mode

Gamifying long-running AI generation pipelines is a brilliant UX hack to reduce perceived latency.

• –The 32x32 pixel art minigame uses real `paper_found` SSE events to spawn obstacles, turning backend activity into a transparent progress bar
• –The new review mode upgrades from basic retrieval to semantic clustering (k-means with Jaccard fallback), allowing for per-cluster literature synthesis
• –Caching now tracks a `_used_count` per paper to prioritize fresh sources and automatically widens date ranges when exhausted
• –Moving all thresholds to a configuration file signals the project is maturing from a personal script into a reusable local framework