fix(windows): harden visual lookups in logger

tests/Commands.Tests.ps1

@@ -6,7 +6,7 @@ BeforeAll {
     $script:WindowsDir = Split-Path -Parent $PSScriptRoot
     $script:BinDir = Join-Path $script:WindowsDir "bin"
     $script:InstallScript = Join-Path $script:WindowsDir "install.ps1"
-    $script:VisualDefaultsErrorPattern = 'property ''Solid'' cannot be found|找不到属性.?Solid|VariableIsUndefined|\$script:Colors'
+    $script:VisualDefaultsErrorPattern = 'property ''(Solid|Error)'' cannot be found|找不到属性.?(Solid|Error)|VariableIsUndefined|\$script:Colors'
 }
 
 Describe "Clean Command" {

tests/Core.Tests.ps1

@@ -70,6 +70,14 @@ Describe "Base Module" {
             $script:Icons.Solid | Should -Be "*"
             $script:Icons.Admin | Should -Not -BeNullOrEmpty
         }
+
+        It "Should restore missing icon entries on demand" {
+            $script:Icons = @{ Solid = "*" }
+
+            (Get-MoleIcon -Name "Error") | Should -Not -BeNullOrEmpty
+            $script:Icons.Error | Should -Not -BeNullOrEmpty
+            $script:Icons.Solid | Should -Be "*"
+        }
     }
 
     Context "Test-IsAdmin" {
@@ -242,6 +250,19 @@ Describe "Logging Module" {
             # Note: The actual function is Write-MoleError
             { Write-MoleError "Test message" } | Should -Not -Throw
         }
+
+        It "Should log errors even when the icon table is partial" {
+            $originalIcons = $script:Icons.Clone()
+
+            try {
+                $script:Icons = @{ Solid = "*" }
+                { Write-MoleError "Test message" } | Should -Not -Throw
+                $script:Icons.Error | Should -Not -BeNullOrEmpty
+            }
+            finally {
+                $script:Icons = $originalIcons
+            }
+        }
     }
 
     Context "Section Functions" {