Find-DbaInstance - Fix TcpConnected false for default instances

When Browser scan type is used, default SQL Server instances do not
report a TCPPort via Browser UDP (clients are expected to use 1433).
On SQL Server 2022+ where the Browser service is deprecated, no ports
are returned at all.

Both cases caused TcpConnected to remain false even when the instance
was reachable over TCP.

Fix:
1. After Browser scan, fall back to testing default TCP port(s) if
   Browser returned no port info (covers deprecated/absent Browser).
2. When BrowseReply exists but has no TCPPort (default instance),
   set TcpConnected/Port from any open port found in PortsScanned.

Fixes #10322

Co-authored-by: Andreas Jordan <andreasjordan@users.noreply.github.com>

Author: github-actions[bot]

public/Find-DbaInstance.ps1

@@ -355,6 +355,12 @@ function Find-DbaInstance {
                             # here to avoid an empty catch
                             $null = 1
                         }
+                        # Fall back to default port testing if Browser returned no port info
+                        # (e.g. SQL Server 2022+ where Browser is deprecated, or default instances
+                        # which don't report a TCP port via Browser UDP)
+                        if (-not $ports) {
+                            $ports = $TCPPort | Test-TcpPort -ComputerName $computer
+                        }
                     } else {
                         $ports = $TCPPort | Test-TcpPort -ComputerName $computer
                     }
@@ -453,6 +459,13 @@ function Find-DbaInstance {
                                 $object.PortsScanned | Where-Object Port -EQ $object.Port | ForEach-Object {
                                     $object.TcpConnected = $_.IsOpen
                                 }
+                            } else {
+                                # Default instance - Browser doesn't report a specific TCP port,
+                                # check if any of the fallback ports we tested is open
+                                $object.PortsScanned | Where-Object IsOpen | Select-Object -First 1 | ForEach-Object {
+                                    $object.Port = $_.Port
+                                    $object.TcpConnected = $true
+                                }
                             }
                         }
                         if ($object.Services) {