build: rebuild Windows binaries and update checksums

Rebuilt ostp-client, ostp-daemon, ostp-installer for Windows
- ostp-client.exe: 1.64 MB (unchanged)
- ostp-daemon.exe: 0.53 MB (unchanged)
- ostp-installer.exe: 0.37 MB (rebuilt)

Updated SHA256SUMS.txt:
- ostp-installer.exe: 8d0c759d4466e8b189ef161d6e0caac823e690bf5a82ee48308975d163728d7f

Recreated ostp-client-windows-x64.zip (1.29 MB)

Note: Windows client uses GUI (Tauri) - no todo!() crashes like Linux CLI

dist/windows-x64/SHA256SUMS.txt

@@ -1,3 +1,3 @@
 94400a0ab3a50a57d3914a905d79e1794a6e9642e63278854a9d492dd4f722ee  ostp-client.exe
 2e5c4dda1b0e9d1807892a3de587e4875906bdbe5343d5b83b5f33488d6e6696  ostp-daemon.exe
-9817c74e41427780cffb3070bfb22afec0f18a570f57e5c6b1cd9a76117c4001  ostp-installer.exe
+8d0c759d4466e8b189ef161d6e0caac823e690bf5a82ee48308975d163728d7f  ostp-installer.exe