ux: clarify VRR is not DRR; add DRR to roadmap

Author: carterscode

README.md

@@ -93,7 +93,7 @@ For each setting you choose: **monitor or not**, **desired value**, and whether
 | [**Game DVR background recording**](https://support.xbox.com/help/games-apps/game-dvr/game-dvr-windows-10) | Always-on game capture. Costs CPU/GPU during gameplay; off is gaming-recommended. | |
 | [**Mouse "Enhance pointer precision"**](https://support.microsoft.com/en-us/windows/change-mouse-settings-e81356a4-0e74-fe38-7d01-9d79fbf8712b) | Acceleration curve applied to mouse movement. Most gamers want this off for consistent aim. | |
 | [**Fullscreen optimizations**](https://devblogs.microsoft.com/directx/demystifying-full-screen-optimizations/) | Borderless-windowed compositing layer for fullscreen apps. | |
-| [**Variable Refresh Rate (Windows)**](https://devblogs.microsoft.com/directx/os-variable-refresh-rate/) | DirectX user-pref VRR toggle. Smoother frame pacing on G-Sync / FreeSync displays. | |
+| [**Variable Refresh Rate (DirectX)**](https://devblogs.microsoft.com/directx/os-variable-refresh-rate/) | G-Sync / FreeSync compatibility flag exposed in Settings → Display → Graphics. **Not** the same as Dynamic Refresh Rate (DRR) in Advanced Display — DRR isn't currently monitored. | |
 | [**Power plan**](https://learn.microsoft.com/en-us/windows-hardware/customize/power-settings/configure-power-settings) | Active Windows power scheme. High Performance keeps CPU clocks elevated. | |
 | [**System Responsiveness**](https://learn.microsoft.com/en-us/windows/win32/procthread/multimedia-class-scheduler-service) | CPU percentage Windows reserves for non-multimedia tasks. Default 20 → 10 frees that headroom for games. | ✓ |
 | [**Network Throttling**](https://learn.microsoft.com/en-us/windows/win32/procthread/multimedia-class-scheduler-service) | Multimedia packet pacing. Disabling reduces network jitter for online games. | |

src/GamerGuardian/UI/SettingsWindow.xaml.cs

@@ -168,8 +168,8 @@ private void LoadGlobals()
             pref: g.FullscreenOptimizations, groupName: "fso"));
 
         GlobalToggleRows.Add(new GlobalToggleRow(
-            name: "Variable Refresh Rate (Windows)",
-            description: "DirectX user-pref VRR toggle. Smoother frame pacing on G-Sync / FreeSync displays.",
+            name: "Variable Refresh Rate (DirectX)",
+            description: "G-Sync / FreeSync compatibility flag (Settings → Display → Graphics). Not the same as Dynamic Refresh Rate (DRR) in Advanced Display.",
             currentText: $"Current: {OnOffText(SafeRead(VrrMonitor.ReadCurrent))}",
             defaultText: "Default: not set",
             onLabel: "Enabled", offLabel: "Disabled",