DragonX compatibility: crash fixes, reorg detection, server failover, sync perf

- Fix Rust FFI panics with catch_unwind wrappers and safe CString handling
- Handle poisoned mutex/RwLock from prior panics instead of crashing
- Add stuck sync detection (10s stall threshold) and chain reorg user prompt
- Add "Skip Verification" button to seed phrase wizard
- Update payment URIs from hush: to drgx:
- Update branding strings throughout UI
- Add all 6 lite servers (lite, lite1-5.dragonx.is) with random selection
- Add server connectivity probing to skip unreachable servers
- Reuse Tokio runtime across block fetch batches to reduce sync overhead
- Update Cargo.lock dependencies

contrib/debian/control

@@ -1,13 +1,13 @@
-Source: silentdragonxlite
-Section: utils
-Priority: optional
-Maintainer: onryo <onryo@hush.land>
-Standards-Version: 4.6.0
-Homepage: https://dragonx.is
-Vcs-Browser: https://git.hush.is/dragonx/SilentDragonXLite
-Vcs-Git: https://git.hush.is/dragonx/SilentDragonXLite.git
-
-Package: silentdragonxlite
-Architecture: amd64 arm64
-Depends: ${shlibs:Depends}, ${misc:Depends}
+Source: silentdragonxlite
+Section: utils
+Priority: optional
+Maintainer: onryo <onryo@hush.land>
+Standards-Version: 4.6.0
+Homepage: https://dragonx.is
+Vcs-Browser: https://git.hush.is/dragonx/SilentDragonXLite
+Vcs-Git: https://git.hush.is/dragonx/SilentDragonXLite.git
+
+Package: silentdragonxlite
+Architecture: amd64 arm64
+Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: SilentDragonXLite is a lightwallet for DRAGONX which does not require you to download the full blockchain.