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/Strings/StringsController.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace DorkNet.Server.Controllers.Strings;
+
+/// <summary>
+/// strings.rec.net — game localisation strings.
+/// Returns an empty table so the client falls back to its bundled defaults.
+/// </summary>
+[ApiController]
+public class StringsController : ControllerBase
+{
+    [HttpGet("/strings/v1")]
+    public ActionResult<Dictionary<string, string>> GetStrings() => Ok(new Dictionary<string, string>());
+
+    [HttpGet("/strings/v1/{locale}")]
+    public ActionResult<Dictionary<string, string>> GetLocale(string locale)
+        => Ok(new Dictionary<string, string>());
+}