Import december-2020-12-18 from private repo (scrubbed 2026-05-27)

Targets Rec Room 2020.12.18 client.

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 the dorknet-clientpatch-{key}.zip
  Release asset the launcher fetches.
- .github/workflows/release.yml — auto-publishes both Release assets
  on v1-december-* tag push.

Scrubbed via maintainer-side scrub-for-public.ps1: same drop rules as
the prior import, plus build-patcher-zip.ps1 added to the tools/
allow-list so it survives the scrub.

DorkNet.Server/Controllers/API/PlayersBanned/PlayersBannedController.cs

@@ -0,0 +1,29 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using DorkNet.Server.Data;
+
+namespace DorkNet.Server.Controllers.API.PlayersBanned;
+
+/// <summary>
+/// api.{rec.net,localhost}/api/PlayersBanned/v1/all — current global
+/// ban list. The watch's mod panel queries this on open.
+/// </summary>
+[ApiController]
+public class PlayersBannedController(DorkNetDbContext db) : ControllerBase
+{
+    [HttpGet("api/PlayersBanned/v1/all")]
+    public async Task<IActionResult> All()
+    {
+        var now = DateTime.UtcNow;
+        var rows = await db.Players
+            .Where(p => p.BannedUntil != null && p.BannedUntil > now)
+            .Select(p => new
+            {
+                PlayerId = (int)p.Id,
+                p.Username,
+                BannedUntil = p.BannedUntil,
+            })
+            .ToListAsync();
+        return Ok(rows);
+    }
+}