Add project files.

Management/Controllers/TestController.cs

@@ -0,0 +1,37 @@
+using Management.Data;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Management.Controllers;
+
+/// <summary>
+/// Test endpoints (anonymous, no auth required).
+/// </summary>
+[ApiController]
+[Route("api/test")]
+public class TestController : ControllerBase
+{
+    private readonly SqlService _sql;
+
+    public TestController(SqlService sql)
+    {
+        _sql = sql;
+    }
+
+    /// <summary>
+    /// Database connectivity test.
+    /// </summary>
+    [HttpGet("ping")]
+    public async Task<IActionResult> Ping(CancellationToken ct)
+    {
+        try
+        {
+            var resp = await _sql.ExecProcAsync("dbo.spTemplate", "ping",
+                """{ "clientId":"00000000-0000-0000-0000-000000000001" }""", ct: ct);
+            return Content(resp, "application/json");
+        }
+        catch (Exception ex)
+        {
+            return StatusCode(500, new { ok = false, error = "Database connection failed", detail = ex.Message });
+        }
+    }
+}