Fix tray health detection and harden backend service startup

screenjob_tray.ps1

@@ -28,7 +28,12 @@ function Read-EnvConfig {
         }
         $parts = $trimmed.Split("=", 2)
         if ($parts.Count -eq 2) {
-            $result[$parts[0].Trim()] = $parts[1].Trim()
+            $key = $parts[0].Trim()
+            $value = $parts[1].Trim()
+            if (($value.StartsWith('"') -and $value.EndsWith('"')) -or ($value.StartsWith("'") -and $value.EndsWith("'"))) {
+                $value = $value.Substring(1, $value.Length - 2)
+            }
+            $result[$key] = $value
         }
     }
     return $result
@@ -79,17 +84,98 @@ function Get-DashboardUrl {
     $envFile = Join-Path $scriptDir ".env"
     $envVars = Read-EnvConfig -EnvFilePath $envFile
 
-    $host = $defaultHost
-    $port = $defaultPort
+    $dashboardHost = $defaultHost
+    $dashboardPort = $defaultPort
 
     if ($envVars.ContainsKey("SCREENJOB_HOST") -and -not [string]::IsNullOrWhiteSpace($envVars["SCREENJOB_HOST"])) {
-        $host = $envVars["SCREENJOB_HOST"]
+        $dashboardHost = $envVars["SCREENJOB_HOST"]
     }
     if ($envVars.ContainsKey("SCREENJOB_PORT") -and -not [string]::IsNullOrWhiteSpace($envVars["SCREENJOB_PORT"])) {
-        $port = $envVars["SCREENJOB_PORT"]
+        $dashboardPort = $envVars["SCREENJOB_PORT"]
     }
 
-    return "http://{0}:{1}/" -f $host, $port
+    $connectHost = Resolve-ConnectHost -ConfiguredHost $dashboardHost
+    return "http://{0}:{1}/" -f $connectHost, $dashboardPort
+}
+
+function Resolve-ConnectHost {
+    param([string]$ConfiguredHost)
+
+    if ([string]::IsNullOrWhiteSpace($ConfiguredHost)) {
+        return "127.0.0.1"
+    }
+
+    switch ($ConfiguredHost.Trim().ToLowerInvariant()) {
+        "0.0.0.0" { return "127.0.0.1" }
+        "::" { return "127.0.0.1" }
+        "*" { return "127.0.0.1" }
+        default { return $ConfiguredHost }
+    }
+}
+
+function Get-HealthCheckHosts {
+    param([string]$ConfiguredHost)
+
+    if ([string]::IsNullOrWhiteSpace($ConfiguredHost)) {
+        return @("127.0.0.1", "localhost")
+    }
+
+    $normalized = $ConfiguredHost.Trim().ToLowerInvariant()
+    switch ($normalized) {
+        "0.0.0.0" { return @("127.0.0.1", "localhost", "::1") }
+        "::" { return @("127.0.0.1", "localhost", "::1") }
+        "*" { return @("127.0.0.1", "localhost", "::1") }
+        default { return @($ConfiguredHost) }
+    }
+}
+
+function Test-TcpEndpoint {
+    param(
+        [Parameter(Mandatory = $true)][string]$HostName,
+        [Parameter(Mandatory = $true)][int]$Port,
+        [int]$TimeoutMs = 1200
+    )
+
+    $client = New-Object System.Net.Sockets.TcpClient
+    try {
+        $async = $client.BeginConnect($HostName, $Port, $null, $null)
+        $connected = $async.AsyncWaitHandle.WaitOne($TimeoutMs, $false)
+        if (-not $connected) {
+            return $false
+        }
+        $client.EndConnect($async) | Out-Null
+        return $true
+    } catch {
+        return $false
+    } finally {
+        $client.Dispose()
+    }
+}
+
+function Get-BackendReachability {
+    $envFile = Join-Path $scriptDir ".env"
+    $envVars = Read-EnvConfig -EnvFilePath $envFile
+    $configuredHost = $defaultHost
+    $configuredPort = $defaultPort
+
+    if ($envVars.ContainsKey("SCREENJOB_HOST") -and -not [string]::IsNullOrWhiteSpace($envVars["SCREENJOB_HOST"])) {
+        $configuredHost = $envVars["SCREENJOB_HOST"]
+    }
+    if ($envVars.ContainsKey("SCREENJOB_PORT") -and -not [string]::IsNullOrWhiteSpace($envVars["SCREENJOB_PORT"])) {
+        $configuredPort = $envVars["SCREENJOB_PORT"]
+    }
+
+    $portNumber = 8787
+    [void][int]::TryParse([string]$configuredPort, [ref]$portNumber)
+    $hostsToTry = Get-HealthCheckHosts -ConfiguredHost $configuredHost
+
+    foreach ($candidateHost in $hostsToTry) {
+        if (Test-TcpEndpoint -HostName $candidateHost -Port $portNumber) {
+            return $true
+        }
+    }
+
+    return $false
 }
 
 function Update-TrayState {
@@ -100,9 +186,20 @@ function Update-TrayState {
     )
 
     $status = Get-ServiceStatusSafe -Name $Name
-    $StatusItem.Text = "Status: $status"
+    $isBackendReachable = Get-BackendReachability
 
-    switch ($status) {
+    $displayStatus = $status
+    if ($status -eq "Running" -and -not $isBackendReachable) {
+        $displayStatus = "Running (Backend Down)"
+    } elseif ($status -eq "Stopped" -and $isBackendReachable) {
+        $displayStatus = "Stopped (Backend Up)"
+    } elseif ($status -eq "NotInstalled" -and $isBackendReachable) {
+        $displayStatus = "NotInstalled (Backend Up)"
+    }
+
+    $StatusItem.Text = "Status: $displayStatus"
+
+    switch ($displayStatus) {
         "Running" {
             $NotifyIcon.Icon = [System.Drawing.SystemIcons]::Information
         }
@@ -114,7 +211,7 @@ function Update-TrayState {
         }
     }
 
-    $tooltip = "ScreenJob Backend: $status"
+    $tooltip = "ScreenJob Backend: $displayStatus"
     if ($tooltip.Length -gt 63) {
         $tooltip = $tooltip.Substring(0, 63)
     }