feat: add send connector preflight probes

scripts/verify-win-helper.ps1

@@ -80,6 +80,20 @@ if (-not $runtimeProbe.ok -or $runtimeProbe.data.probe_mode -ne "read_only_proce
     throw "probe_client_runtime failed: $($runtimeProbe | ConvertTo-Json -Depth 8 -Compress)"
 }
 
+$entrypointProbe = Invoke-HelperJson @{
+    protocol = "isphere.helper.v1"
+    request_id = "verify-send-entrypoints"
+    op = "probe_send_entrypoints"
+    timeout_ms = 5000
+    args = @{}
+}
+if (-not $entrypointProbe.ok -or $entrypointProbe.data.probe_mode -ne "read_only_send_entrypoint_metadata" -or $null -eq $entrypointProbe.data.entrypoints) {
+    throw "probe_send_entrypoints failed: $($entrypointProbe | ConvertTo-Json -Depth 8 -Compress)"
+}
+if ($entrypointProbe.data.safety.sent_message -or $entrypointProbe.data.safety.uploaded_file -or $entrypointProbe.data.safety.clicked_ui) {
+    throw "probe_send_entrypoints safety flags failed: $($entrypointProbe | ConvertTo-Json -Depth 8 -Compress)"
+}
+
 $dumpMissing = Invoke-HelperJson @{
     protocol = "isphere.helper.v1"
     request_id = "verify-dump-missing"
@@ -92,8 +106,52 @@ if ($dumpMissing.ok -or $dumpMissing.error.code -notin @("WINDOW_NOT_FOUND", "UI
 }
 
 $title = "Codex WinHelper Verify " + [guid]::NewGuid().ToString("N").Substring(0, 8)
-$formScript = "Add-Type -AssemblyName System.Windows.Forms; `$form = New-Object System.Windows.Forms.Form; `$form.Text = '$title'; `$form.Width = 420; `$form.Height = 180; `$button = New-Object System.Windows.Forms.Button; `$button.Text = 'ProbeButton'; `$button.Dock = 'Fill'; `$form.Controls.Add(`$button); [void]`$form.ShowDialog()"
-$process = Start-Process powershell -ArgumentList @("-NoProfile", "-Command", $formScript) -PassThru
+$formScriptPath = Join-Path $env:TEMP ("codex-winhelper-form-" + [guid]::NewGuid().ToString("N") + ".ps1")
+$formScript = @"
+Add-Type -AssemblyName System.Windows.Forms
+`$form = New-Object System.Windows.Forms.Form
+`$form.Text = '$title'
+`$form.Width = 620
+`$form.Height = 420
+`$layout = New-Object System.Windows.Forms.TableLayoutPanel
+`$layout.Dock = 'Fill'
+`$layout.RowCount = 6
+`$layout.ColumnCount = 1
+`$form.Controls.Add(`$layout)
+`$search = New-Object System.Windows.Forms.TextBox
+`$search.Name = 'skinAlphaTxt'
+`$search.Text = 'search placeholder'
+`$search.Dock = 'Fill'
+`$layout.Controls.Add(`$search)
+`$recv = New-Object System.Windows.Forms.RichTextBox
+`$recv.Name = 'rtbRecvMessage'
+`$recv.Text = ''
+`$recv.Dock = 'Fill'
+`$layout.Controls.Add(`$recv)
+`$send = New-Object System.Windows.Forms.RichTextBox
+`$send.Name = 'rtbSendMessage'
+`$send.Text = ''
+`$send.Dock = 'Fill'
+`$layout.Controls.Add(`$send)
+`$button = New-Object System.Windows.Forms.Button
+`$button.Name = 'btnSend'
+`$button.Text = 'Send'
+`$button.Dock = 'Fill'
+`$layout.Controls.Add(`$button)
+`$file = New-Object System.Windows.Forms.Button
+`$file.Name = 'btnFile'
+`$file.Text = 'File'
+`$file.Dock = 'Fill'
+`$layout.Controls.Add(`$file)
+`$offline = New-Object System.Windows.Forms.Label
+`$offline.Name = 'offlineSendBlocker'
+`$offline.Text = 'Offline send blocker'
+`$offline.Dock = 'Fill'
+`$layout.Controls.Add(`$offline)
+[void]`$form.ShowDialog()
+"@
+Set-Content -LiteralPath $formScriptPath -Value $formScript -Encoding UTF8
+$process = Start-Process powershell -ArgumentList @("-NoProfile", "-ExecutionPolicy", "Bypass", "-File", $formScriptPath) -PassThru
 try {
     $candidate = $null
     for ($i = 0; $i -lt 20 -and -not $candidate; $i++) {
@@ -121,11 +179,31 @@ try {
     if (-not $dump.ok -or $dump.data.root.control_type -ne "Window") {
         throw "dump_uia form check failed: $($dump | ConvertTo-Json -Depth 12 -Compress)"
     }
+
+    $sendUiaProbe = Invoke-HelperJson @{
+        protocol = "isphere.helper.v1"
+        request_id = "verify-send-uia-controls"
+        op = "probe_send_uia_controls"
+        timeout_ms = 5000
+        args = @{ hwnd = $candidate.hwnd; max_depth = 6; max_children = 120 }
+    }
+    if (-not $sendUiaProbe.ok -or $sendUiaProbe.data.probe_mode -ne "read_only_uia_send_control_classifier") {
+        throw "probe_send_uia_controls failed: $($sendUiaProbe | ConvertTo-Json -Depth 12 -Compress)"
+    }
+    if (-not $sendUiaProbe.data.flags.has_search_edit -or -not $sendUiaProbe.data.flags.has_send_editor -or -not $sendUiaProbe.data.flags.has_send_button -or -not $sendUiaProbe.data.flags.has_file_menu -or -not $sendUiaProbe.data.flags.offline_blocker_visible) {
+        throw "probe_send_uia_controls missing expected synthetic controls: $($sendUiaProbe | ConvertTo-Json -Depth 12 -Compress)"
+    }
+    if ($sendUiaProbe.data.safety.sent_message -or $sendUiaProbe.data.safety.uploaded_file -or $sendUiaProbe.data.safety.clicked_ui -or $sendUiaProbe.data.safety.typed_text) {
+        throw "probe_send_uia_controls safety flags failed: $($sendUiaProbe | ConvertTo-Json -Depth 12 -Compress)"
+    }
 }
 finally {
     if ($process -and -not $process.HasExited) {
         Stop-Process -Id $process.Id -Force
     }
+    if (Test-Path -LiteralPath $formScriptPath) {
+        Remove-Item -LiteralPath $formScriptPath -Force
+    }
 }
 
 [ordered]@{
@@ -134,5 +212,7 @@ finally {
     version = $version.data.helper_version
     scan_window_count = $scan.data.windows.Count
     runtime_probe_target_count = $runtimeProbe.data.target_count
+    send_entrypoint_probe_mode = $entrypointProbe.data.probe_mode
+    synthetic_send_uia_route_hint = $sendUiaProbe.data.flags.route_hint
     uia_available = $selfCheck.data.uia_available
 } | ConvertTo-Json -Depth 4 -Compress