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

.gitignore

@@ -1,46 +1,46 @@
-bin/
-debug/
-release/
-x64/
-artifacts/
-docs/website/public
-.vscode/
-res/libsodium.a
-res/libsodium/libsodium*
-res/libsodium.a
-src/ui_*.h
-*.autosave
-src/precompiled.h.cpp
-.qmake.stash
-silentdragonlite
-silentdragonlite.app
-silentdragon-lite-mingw*
-silentdragon-lite.vcxproj*
-silentdragonlite.vcxproj*
-silentdragon-lite.sln
-silentdragon-lite.pro.user
-/Makefile
-/Makefile.*
-qrc_application.cpp
-silentdragonlite_plugin_import.cpp
-silentdragon_plugin_import.cpp
-silentdragonlite_resource*
-silentdragon_resource*
-workspace.code-workspace
-*.zip
-*.tar.gz
-*.xcsettings
-.DS_Store
-*.mak
-hushd
-IDEWorkspaceChecks.plist
-*.sln
-node_modules
-silentdragonlite.pro.user.4.10-pre1
-silentdragonlite
-silentdragonlite_plugin_import.cpp
-silentdragonlite_resource.rc
-SilentDragonLite
-.gdb_history
-.*sw?
-core
+bin/
+debug/
+release/
+x64/
+artifacts/
+docs/website/public
+.vscode/
+res/libsodium.a
+res/libsodium/libsodium*
+res/libsodium.a
+src/ui_*.h
+*.autosave
+src/precompiled.h.cpp
+.qmake.stash
+silentdragonlite
+silentdragonlite.app
+silentdragon-lite-mingw*
+silentdragon-lite.vcxproj*
+silentdragonlite.vcxproj*
+silentdragon-lite.sln
+silentdragon-lite.pro.user
+/Makefile
+/Makefile.*
+qrc_application.cpp
+silentdragonlite_plugin_import.cpp
+silentdragon_plugin_import.cpp
+silentdragonlite_resource*
+silentdragon_resource*
+workspace.code-workspace
+*.zip
+*.tar.gz
+*.xcsettings
+.DS_Store
+*.mak
+hushd
+IDEWorkspaceChecks.plist
+*.sln
+node_modules
+silentdragonlite.pro.user.4.10-pre1
+silentdragonlite
+silentdragonlite_plugin_import.cpp
+silentdragonlite_resource.rc
+SilentDragonLite
+.gdb_history
+.*sw?
+core