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.Server/Controllers/API/Config/V1/ConfigController.cs

@@ -0,0 +1,72 @@
+using Microsoft.AspNetCore.Mvc;
+using DorkNet.Server.Services;
+
+namespace DorkNet.Server.Controllers.API.Config.V1;
+
+[ApiController]
+[Route("api/[controller]/v1")]
+public class ConfigController(ConfigService configService) : ControllerBase
+{
+    [HttpGet("motd")]
+    public ActionResult<string> GetMotd()
+    {
+        var cfg = configService.GetConfig($"{Request.Scheme}://{Request.Host}");
+        return Ok(cfg.MessageOfTheDay);
+    }
+
+    [HttpGet("objectives")]
+    public ActionResult<List<object>> GetObjectives() => Ok(new List<object>());
+
+    // AmplitudeConfig.Deserialize expects key "AmplitudeKey"
+    [HttpGet("amplitude")]
+    public ActionResult<object> GetAmplitude() => Ok(new { AmplitudeKey = string.Empty });
+
+    /// <summary>
+    /// `Config.GetCohortNUXButtonConfigs(cohortId)` — returns the four
+    /// "What would you like to do first?" buttons shown in the OOBE
+    /// (RegistrationSceneNUX → ChooseCohortScreen). Each button maps to
+    /// a room the new player can teleport into.
+    ///
+    /// Wire shape per CohortNUXButtonConfig (TypeDefIndex 11516) — list of:
+    ///   Version          (int)
+    ///   ButtonNumber     (int, 0..3 → Button1..Button4)
+    ///   Override         (int, 0=None, 1=Hotlist, 2=Custom)
+    ///   CustomRoomName   (string)
+    ///   CustomTitle      (string)
+    ///   DefaultRoomName  (string)
+    ///   DefaultTitle     (string)
+    ///
+    /// The screen picks `CustomRoomName` if Override=Custom, else the
+    /// `DefaultRoomName` (resolved by Rooms.GetByName). For simplicity all
+    /// four use Override=None and route to Rec Room Original rooms we
+    /// already seeded — picking the most newcomer-friendly ones.
+    /// </summary>
+    [HttpGet("cohortnux/{cohortId:int}")]
+    public IActionResult GetCohortNux(int cohortId) => Ok(new[]
+    {
+        new {
+            Version = 1, ButtonNumber = 0, Override = 0,
+            CustomRoomName = "", CustomTitle = "",
+            DefaultRoomName = "RecCenter",
+            DefaultTitle = "Hang out at the Rec Center",
+        },
+        new {
+            Version = 1, ButtonNumber = 1, Override = 0,
+            CustomRoomName = "", CustomTitle = "",
+            DefaultRoomName = "Paintball",
+            DefaultTitle = "Play Paintball",
+        },
+        new {
+            Version = 1, ButtonNumber = 2, Override = 0,
+            CustomRoomName = "", CustomTitle = "",
+            DefaultRoomName = "Dodgeball",
+            DefaultTitle = "Play Dodgeball",
+        },
+        new {
+            Version = 1, ButtonNumber = 3, Override = 0,
+            CustomRoomName = "", CustomTitle = "",
+            DefaultRoomName = "GoldenTrophy",
+            DefaultTitle = "Quest for the Golden Trophy",
+        },
+    });
+}

DorkNet.Server/Controllers/API/Config/V1/ServiceUrlsController.cs

@@ -0,0 +1,19 @@
+using Microsoft.AspNetCore.Mvc;
+using DorkNet.Server.Services;
+
+namespace DorkNet.Server.Controllers.API.Config.V1;
+
+/// <summary>
+/// Returns the full Rec Room service URL map. Some builds fetch this standalone
+/// at /api/config/v1/services to discover where the other subdomains live.
+/// Apex comes from <see cref="DomainConfig"/> (DORKNET_DOMAIN), so a single
+/// env var controls every URL emitted.
+/// </summary>
+[ApiController]
+[Route("api/config/v1")]
+public class ServiceUrlsController(DomainConfig domain) : ControllerBase
+{
+    [HttpGet("services")]
+    public ActionResult<Dictionary<string, string>> Get()
+        => Ok(ConfigService.BuildServiceUrlMap(domain.Apex));
+}

DorkNet.Server/Controllers/API/Config/V2/ConfigController.cs

@@ -0,0 +1,17 @@
+using Microsoft.AspNetCore.Mvc;
+using DorkNet.Models.Config;
+using DorkNet.Server.Services;
+
+namespace DorkNet.Server.Controllers.API.Config.V2;
+
+[ApiController]
+[Route("api/[controller]/v2")]
+public class ConfigController(ConfigService configService) : ControllerBase
+{
+    [HttpGet]
+    public ActionResult<RecRoomConfig> GetConfig()
+    {
+        var baseUrl = $"{Request.Scheme}://{Request.Host}";
+        return Ok(configService.GetConfig(baseUrl));
+    }
+}