webui: split raw output into backend parsing and frontend display options

tools/server/webui/src/lib/components/app/chat/ChatMessages/ChatMessageAssistant.svelte

@@ -261,7 +261,7 @@
 			{onConfirmDelete}
 			{onNavigateToSibling}
 			{onShowDeleteDialogChange}
-			showRawOutputSwitch={currentConfig.disableReasoningFormat}
+			showRawOutputSwitch={currentConfig.showRawOutputSwitch}
 			rawOutputEnabled={showRawOutput}
 			onRawOutputToggle={(enabled) => (showRawOutput = enabled)}
 		/>

tools/server/webui/src/lib/components/app/chat/ChatSettings/ChatSettings.svelte

@@ -276,8 +276,13 @@
 			icon: Code,
 			fields: [
 				{
-					key: 'disableReasoningFormat',
-					label: 'Enable raw LLM output switch',
+					key: 'disableReasoningParsing',
+					label: 'Disable reasoning content parsing',
+					type: 'checkbox'
+				},
+				{
+					key: 'showRawOutputSwitch',
+					label: 'Enable raw output toggle',
 					type: 'checkbox'
 				},
 				{

tools/server/webui/src/lib/constants/settings-config.ts

@@ -6,7 +6,8 @@ export const SETTING_CONFIG_DEFAULT: Record<string, string | number | boolean> =
 	showSystemMessage: true,
 	theme: 'system',
 	showThoughtInProgress: false,
-	disableReasoningFormat: false,
+	disableReasoningParsing: false,
+	showRawOutputSwitch: false,
 	keepStatsVisible: false,
 	showMessageStats: true,
 	askForTitleConfirmation: false,
@@ -95,8 +96,10 @@ export const SETTING_CONFIG_INFO: Record<string, string> = {
 	max_tokens: 'The maximum number of token per output. Use -1 for infinite (no limit).',
 	custom: 'Custom JSON parameters to send to the API. Must be valid JSON format.',
 	showThoughtInProgress: 'Expand thought process by default when generating messages.',
-	disableReasoningFormat:
-		'Enable raw LLM output switch to show unprocessed model output without backend parsing and frontend Markdown rendering to inspect streaming across different models.',
+	disableReasoningParsing:
+		'Send reasoning_format=none to prevent server-side extraction of reasoning tokens into separate field',
+	showRawOutputSwitch:
+		'Show toggle button to display messages as plain text instead of Markdown-formatted content',
 	keepStatsVisible: 'Keep processing statistics visible after generation finishes.',
 	showMessageStats:
 		'Display generation statistics (tokens/second, token count, duration) below each assistant message.',

tools/server/webui/src/lib/services/parameter-sync.ts

@@ -69,12 +69,6 @@ export const SYNCABLE_PARAMETERS: SyncableParameter[] = [
 		type: 'boolean',
 		canSync: true
 	},
-	{
-		key: 'disableReasoningFormat',
-		serverKey: 'disableReasoningFormat',
-		type: 'boolean',
-		canSync: true
-	},
 	{ key: 'keepStatsVisible', serverKey: 'keepStatsVisible', type: 'boolean', canSync: true },
 	{ key: 'showMessageStats', serverKey: 'showMessageStats', type: 'boolean', canSync: true },
 	{