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

lib/Cargo.toml

@@ -1,16 +1,16 @@
-[package]
-name = "qtlib"
-version = "0.1.0"
-authors = ["zecwallet", "The Hush Developers"]
-edition = "2018"
-
-[lib]
-name = "silentdragonxlite"
-crate-type = ["staticlib"]
-
-[dependencies]
-libc = "0.2.58"
-lazy_static = "1.4.0"
-blake3 = "0.3.4"
-silentdragonxlitelib = { git = "https://git.hush.is/dragonx/silentdragonxlite-cli", rev = "505fac6b6eef50be9f0e2b375c2fa6815f8bf18c" }
-socket2 = "0.3.11"
+[package]
+name = "qtlib"
+version = "0.1.0"
+authors = ["zecwallet", "The Hush Developers"]
+edition = "2018"
+
+[lib]
+name = "silentdragonxlite"
+crate-type = ["staticlib"]
+
+[dependencies]
+libc = "0.2.58"
+lazy_static = "1.4.0"
+blake3 = "0.3.4"
+silentdragonxlitelib = { path = "/home/d/external/silentdragonxlite-cli/lib" }
+socket2 = "0.3.11"