Import march-2020-03-10 from private repo (scrubbed 2026-05-27)

Targets Rec Room 2020.03.10 client (also serves 2020.03.06).

Re-import after adding:
- DorkNet.ClientMod/dorknet-clientmod.json.template — config schema
  the launcher's manifest-driven patcher renders into UserData/.
- tools/build-patcher-zip.ps1 — produces dorknet-clientpatch-{key}.zip
  for v1-march-* Release uploads.
- .github/workflows/release.yml — on tag push publishes both
  dorknet-server-march_2020_03_10-win-x64.zip and
  dorknet-clientpatch-march_2020_03_10.zip as Release assets.

Same scrub rules as december; tools/build-patcher-zip.ps1 added to
the maintainer-side allow-list so it survives.

DorkNet.Models/Auth/RefreshLoginResponse.cs

@@ -0,0 +1,17 @@
+using System.Text.Json.Serialization;
+
+namespace DorkNet.Models.Auth;
+
+/// <summary>
+/// Login.RefreshLoginResponse — dump.cs:578533 (private nested class),
+/// Deserialize at RVA 0x145B1E0.
+///
+/// Verified by disassembly: reads exactly one key — lowercase "token" —
+/// via Util.GetKey&lt;string&gt;. Single-field response from
+/// POST api/platformlogin/refresh: the new (rotated) bearer access token.
+/// </summary>
+public class RefreshLoginResponse
+{
+    [JsonPropertyName("token")]
+    public string Token { get; set; } = string.Empty;
+}