Rename hush→dragonx across wallet codebase

- Rename RESOURCE_HUSHD/HUSH_CLI/HUSH_TX to RESOURCE_DRAGONXD/DRAGONX_CLI/DRAGONX_TX
- Remove unused .bat resource constants (DRAGONXD_BAT, DRAGONX_CLI_BAT)
- Update INCBIN symbols: g_hushd_exe → g_dragonxd_exe, etc.
- Update daemon search paths, removing hush-arrakis-chain fallbacks
- Update process detection (Windows findProcessByName, Linux /proc/comm, macOS pgrep)
- Update build.sh: embed dragonxd.exe/dragonx-cli.exe/dragonx-tx.exe
- Overhaul setup.sh: fix binary names, release paths, add -j passthrough
- Update getDaemonPath/needsDaemonExtraction/hasDaemonAvailable for new names

scripts/legacy/build-windows.sh

@@ -130,8 +130,8 @@ done
 
 # Look for asmap.dat
 ASMAP_PATHS=(
-    "$HOME/hush3/asmap.dat"
-    "$HOME/hush3/contrib/asmap/asmap.dat"
+    "$HOME/dragonx/asmap.dat"
+    "$HOME/dragonx/contrib/asmap/asmap.dat"
     "$SCRIPT_DIR/../asmap.dat"
     "$SCRIPT_DIR/asmap.dat"
     "$SCRIPT_DIR/../SilentDragonX/asmap.dat"