Justfuckingcopy

Create a desktop application prototype using Tauri that implements a "universal copy/paste" feature by reading from selected screen areas instead of standard clipboard APIs. The app should allow users to drag a marquee, run OCR on the crop, and then merge the recognized text into a running session. Crucially, it needs to detect and trim duplicated lines when adjacent captures overlap before pushing the final merged text to the native clipboard. The frontend should be a dependency-light static interface, and the backend logic should handle platform-specific screenshot capture (like `screencapture` on macOS or fallbacks for Linux/Windows).