feat: add bitrate visualization with file analysis

Add comprehensive bitrate data extraction and visualization capabilities:
- Implement analyze_files command for file candidacy detection
- Add extract_bitrate_data command using ffprobe
- Create BitrateData, BitrateFrame, File, and FileCandidacy types with TS bindings
- Update App to fetch and display bitrate data from dropped files
- Refactor DropOverlay to use new file analysis system
- Configure Graph component for packet size visualization
- Simplify drag-drop flow to trigger on drop event only

src/hooks/useDragDropPaths.ts

@@ -7,14 +7,13 @@ export function useDragDropPaths(): string[] {
 	useEffect(() => {
 		const unlistenPromise = getCurrentWebview().onDragDropEvent(
 			async ({ payload }) => {
-				if (payload.type === "enter") {
+				if (payload.type === "drop") {
 					setPaths(payload.paths);
-				} else if (payload.type === "leave" || payload.type === "drop") {
+				} else if (payload.type === "leave") {
 					setPaths([]);
 				}
 			},
 		);
-
 		return () => {
 			unlistenPromise.then((unlisten) => unlisten());
 		};