Move RIO hardware + firmware archive to the TeslaRel410 repo

The physical RIO board docs (photos, schematics, GAL decode) and the
board firmware (dumps, disassembly, make_patch.py, RIO 4.3 + FastRIO
images, analysis, testlogs) describe hardware shared across all Tesla
cockpits with a lifecycle independent of this Windows app — a
native-game-only cabinet runs the firmware and never touches RIOjoy.
They now live in TeslaRel410/restoration/{rio-hardware,rio-firmware}
with full history preserved (git subtree).

Kept here: docs/PROTOCOL.md (this app's interface contract) and the
RioSerialMonitor bench harness (--mash/--e0test, C# on RioJoy.Core).
README + code comments now point at the TeslaRel410 archive.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/RioJoy.Core/Profiles/AppConfig.cs

@@ -12,8 +12,8 @@ public sealed class AppConfig
 
     /// <summary>
     /// RIO link baud rate. 9600 = stock/wedge-patched firmware (native-game
-    /// compatible). 31250 = the validated FastRIO chip
-    /// (rio-firmware/RIOv4_2_patched_31250v2.bin) — needs an FTDI-class
+    /// compatible). 31250 = the FastRIO chip (TeslaRel410
+    /// restoration/rio-firmware/RIOv4_3_fastrio.bin) — needs an FTDI-class
     /// adapter; classic 16550 UARTs cannot make this rate.
     /// </summary>
     public int RioBaudRate { get; set; } = 9600;