Fix extraction status cross-contamination with filename pattern matching, release v1.4.70

Previous fix used pathKey-based maps which failed due to path resolution
mismatches on Windows. New approach matches items to archives using
filename regex patterns directly (e.g. prefix.part\d+.rar), which is
robust regardless of path casing/resolution.

Also marks items as "Entpackt" immediately when their archive finishes
instead of waiting for all archives to complete, so completed episodes
show correct status while later episodes are still extracting.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.69",
+  "version": "1.4.70",
   "description": "Real-Debrid Downloader Desktop (Electron + React + TypeScript)",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",