feat(launcher): sync release assets from manifest or attachment list (no fixed exe name)

- default files []: resolve sync list from patch-manifest keys, else discover
  release attachments (exclude launcher artifacts).
- Explicit files[] still overrides; strip deprecated Wow-patched.exe on merge.
- listReleaseAttachmentNames + fetchGiteaReleaseRecord helpers.
- Version 1.0.7; README config docs.

Co-authored-by: Cursor <cursoragent@cursor.com>

tools/fractured-launcher-electron/package.json

@@ -1,6 +1,6 @@
 {
   "name": "fractured-launcher-electron",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "Fractured WoW launcher (Electron) — no console window, native folder picker, auto-update",
   "main": "main.js",
   "repository": {