fix: refresh WSL2 instance defaults on mode override

internal/cli/run.go

@@ -32,7 +32,7 @@ func applyServerTypeFlagOverrides(cfg *Config, fs *flag.FlagSet, serverType stri
 	if cfg.ServerTypeExplicit {
 		return
 	}
-	if cfg.ServerType == "" || flagWasSet(fs, "provider") || flagWasSet(fs, "class") || flagWasSet(fs, "target") {
+	if cfg.ServerType == "" || flagWasSet(fs, "provider") || flagWasSet(fs, "class") || flagWasSet(fs, "target") || flagWasSet(fs, "windows-mode") {
 		cfg.ServerType = serverTypeForConfig(*cfg)
 	}
 }

internal/cli/run_test.go

@@ -154,12 +154,17 @@ func TestApplyServerTypeFlagOverridesUsesTargetAwareAWSDefaults(t *testing.T) {
 			args: []string{"--provider", "aws", "--target", "windows", "--windows-mode", "wsl2", "--class", "standard"},
 			want: "m8i.large",
 		},
+		{
+			name: "windows mode only",
+			args: []string{"--windows-mode", "wsl2"},
+			want: "m8i.4xlarge",
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			cfg := Config{
 				Provider:    "aws",
-				TargetOS:    targetLinux,
+				TargetOS:    targetWindows,
 				WindowsMode: windowsModeNormal,
 				Class:       "beast",
 				ServerType:  "c7a.48xlarge",