feat: 支持HDMI关闭传输

server/src/Controllers/HdmiVideoStreamController.cs

@@ -60,4 +60,38 @@ public class HdmiVideoStreamController : ControllerBase
         var endpoint = _videoStreamService.GetVideoEndpoint(boardId.ToString());
         return Ok(endpoint);
     }
+
+    // 禁用指定板子的 HDMI 传输
+    [HttpPost("DisableHdmiTransmission")]
+    [Authorize]
+    public async Task<IActionResult> DisableHdmiTransmission()
+    {
+        var userName = User.FindFirstValue(ClaimTypes.Name);
+        if (string.IsNullOrEmpty(userName))
+            return Unauthorized("User name not found in claims.");
+
+        var db = new AppDataConnection();
+        if (db == null)
+            return NotFound("Database connection failed.");
+
+        var userRet = db.GetUserByName(userName);
+        if (!userRet.IsSuccessful || !userRet.Value.HasValue)
+            return NotFound("User not found.");
+
+        var user = userRet.Value.Value;
+        var boardId = user.BoardID;
+        if (boardId == Guid.Empty)
+            return NotFound("No board bound to this user.");
+
+        try
+        {
+            await _videoStreamService.DisableHdmiTransmissionAsync(boardId.ToString());
+            return Ok($"HDMI transmission for board {boardId} disabled.");
+        }
+        catch (Exception ex)
+        {
+            logger.Error(ex, $"Failed to disable HDMI transmission for board {boardId}");
+            return StatusCode(500, $"Error disabling HDMI transmission: {ex.Message}");
+        }
+    }
 }