fix: error handling

src/components/activityLog/ActivityLogTable.tsx

@@ -39,6 +39,9 @@ function parseDetails(raw: string): string {
 		if (obj.driver_count !== undefined && obj.race_count !== undefined) {
 			return `${obj.driver_count} drivers, ${obj.race_count} races`;
 		}
+		if (obj.preset_id) {
+			return `Preset: ${obj.preset_name} - Sections applied: ${obj.sections_applied}`;
+		}
 		return raw;
 	} catch {
 		return raw;
@@ -50,7 +53,9 @@ const ACTION_BADGE: Record<ActionType, string> = {
 	server_start: 'bg-green-bg text-green',
 	server_stop: 'bg-red-bg text-red',
 	server_restart: 'bg-yellow-bg text-yellow',
-	leaderboard_update: 'bg-overlay text-muted'
+	leaderboard_update: 'bg-overlay text-muted',
+	preset_create: 'bg-green-bg text-green',
+	preset_apply: 'bg-blue-bg text-blue'
 };
 
 export function ActivityLogTable({ serverId, servers }: ActivityLogTableProps) {

src/components/configuration/AssistRulesEditor.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import type { AssistRules } from '@/lib/schemas/config';
+import { FIELD_LABELS } from '@/lib/schemas/config';
 
 interface AssistRulesEditorProps {
 	formData: AssistRules;
@@ -8,52 +9,16 @@ interface AssistRulesEditorProps {
 	onFormDataChange: (data: AssistRules) => void;
 }
 
-const assistFields = [
+const assistFields: { key: keyof AssistRules; type: 'number' | 'select' }[] = [
-	{
+	{ key: 'stabilityControlLevelMax', type: 'number' },
-		key: 'stabilityControlLevelMax' as keyof AssistRules,
+	{ key: 'disableAutosteer', type: 'select' },
-		label: 'Stability Control Level Max',
+	{ key: 'disableAutoLights', type: 'select' },
-		type: 'number'
+	{ key: 'disableAutoWiper', type: 'select' },
-	},
+	{ key: 'disableAutoEngineStart', type: 'select' },
-	{
+	{ key: 'disableAutoPitLimiter', type: 'select' },
-		key: 'disableAutosteer' as keyof AssistRules,
+	{ key: 'disableAutoGear', type: 'select' },
-		label: 'Disable Autosteer',
+	{ key: 'disableAutoClutch', type: 'select' },
-		type: 'select'
+	{ key: 'disableIdealLine', type: 'select' }
-	},
-	{
-		key: 'disableAutoLights' as keyof AssistRules,
-		label: 'Disable Auto Lights',
-		type: 'select'
-	},
-	{
-		key: 'disableAutoWiper' as keyof AssistRules,
-		label: 'Disable Auto Wiper',
-		type: 'select'
-	},
-	{
-		key: 'disableAutoEngineStart' as keyof AssistRules,
-		label: 'Disable Auto Engine Start',
-		type: 'select'
-	},
-	{
-		key: 'disableAutoPitLimiter' as keyof AssistRules,
-		label: 'Disable Auto Pit Limiter',
-		type: 'select'
-	},
-	{
-		key: 'disableAutoGear' as keyof AssistRules,
-		label: 'Disable Auto Gear',
-		type: 'select'
-	},
-	{
-		key: 'disableAutoClutch' as keyof AssistRules,
-		label: 'Disable Auto Clutch',
-		type: 'select'
-	},
-	{
-		key: 'disableIdealLine' as keyof AssistRules,
-		label: 'Disable Ideal Line',
-		type: 'select'
-	}
 ];
 
 export function AssistRulesEditor({ formData, disabled, onFormDataChange }: AssistRulesEditorProps) {
@@ -67,9 +32,9 @@ export function AssistRulesEditor({ formData, disabled, onFormDataChange }: Assi
 	return (
 		<div className="max-w-3xl space-y-6">
 			<div className="grid grid-cols-1 gap-6 md:grid-cols-2">
-				{assistFields.map(({ key, label, type }) => (
+				{assistFields.map(({ key, type }) => (
 					<div key={key}>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">{label}</label>
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS[key]}</label>
 						{type === 'number' ? (
 							<input
 								type="number"

src/components/configuration/ConfigurationEditor.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import type { Configuration } from '@/lib/schemas/config';
+import { FIELD_LABELS } from '@/lib/schemas/config';
 
 interface ConfigurationEditorProps {
 	formData: Configuration;
@@ -20,7 +21,7 @@ export function ConfigurationEditor({ formData, disabled, onFormDataChange }: Co
 		<div className="max-w-3xl space-y-6">
 			<div className="grid grid-cols-1 gap-6 md:grid-cols-2">
 				<div>
-					<label className="mb-1.5 block text-sm font-medium text-secondary">UDP Port</label>
+					<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.udpPort}</label>
 					<input
 						type="number"
 						disabled={disabled}
@@ -31,7 +32,7 @@ export function ConfigurationEditor({ formData, disabled, onFormDataChange }: Co
 				</div>
 
 				<div>
-					<label className="mb-1.5 block text-sm font-medium text-secondary">TCP Port</label>
+					<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.tcpPort}</label>
 					<input
 						type="number"
 						disabled={disabled}
@@ -42,7 +43,7 @@ export function ConfigurationEditor({ formData, disabled, onFormDataChange }: Co
 				</div>
 
 				<div>
-					<label className="mb-1.5 block text-sm font-medium text-secondary">Max Connections</label>
+					<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.maxConnections}</label>
 					<input
 						type="number"
 						disabled={disabled}
@@ -53,7 +54,7 @@ export function ConfigurationEditor({ formData, disabled, onFormDataChange }: Co
 				</div>
 
 				<div>
-					<label className="mb-1.5 block text-sm font-medium text-secondary">LAN Discovery</label>
+					<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.lanDiscovery}</label>
 					<select
 						disabled={disabled}
 						value={formData.lanDiscovery}
@@ -66,7 +67,7 @@ export function ConfigurationEditor({ formData, disabled, onFormDataChange }: Co
 				</div>
 
 				<div>
-					<label className="mb-1.5 block text-sm font-medium text-secondary">Register To Lobby</label>
+					<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.registerToLobby}</label>
 					<select
 						disabled={disabled}
 						value={formData.registerToLobby}

src/components/configuration/EventConfigEditor.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import type { EventConfig, Session } from '@/lib/schemas/config';
+import { FIELD_LABELS } from '@/lib/schemas/config';
 import { TRACKS } from '@/lib/constants/tracks';
 
 interface EventConfigEditorProps {
@@ -63,7 +64,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 				</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2">
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">Track</label>
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.track}</label>
 						<select
 							disabled={disabled}
 							value={formData.track}
@@ -79,9 +80,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.preRaceWaitingTimeSeconds}</label>
-							Pre-Race Waiting Time (seconds)
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -93,9 +92,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.sessionOverTimeSeconds}</label>
-							Session Over Time (seconds)
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -107,9 +104,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.postQualySeconds}</label>
-							Post Qualify Seconds
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -121,9 +116,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.postRaceSeconds}</label>
-							Post Race Seconds
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -142,9 +135,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 				</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2 lg:grid-cols-3">
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.ambientTemp}</label>
-							Ambient Temperature (°C)
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -157,9 +148,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.cloudLevel}</label>
-							Cloud Level (0.0-1.0)
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -173,7 +162,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">Rain (0.0-1.0)</label>
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.rain}</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -187,9 +176,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.weatherRandomness}</label>
-							Weather Randomness
-						</label>
 						<input
 							type="number"
 							disabled={disabled}
@@ -202,9 +189,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.simracerWeatherConditions}</label>
-							Simracer Weather Conditions
-						</label>
 						<select
 							disabled={disabled}
 							value={formData.simracerWeatherConditions}
@@ -217,9 +202,7 @@ export function EventConfigEditor({ formData, disabled, onFormDataChange }: Even
 					</div>
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.isFixedConditionQualification}</label>
-							Fixed Condition Qualification
-						</label>
 						<select
 							disabled={disabled}
 							value={formData.isFixedConditionQualification}

src/components/configuration/EventRulesEditor.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import type { EventRules } from '@/lib/schemas/config';
+import { FIELD_LABELS } from '@/lib/schemas/config';
 
 interface EventRulesEditorProps {
 	formData: EventRules;
@@ -8,63 +9,21 @@ interface EventRulesEditorProps {
 	onFormDataChange: (data: EventRules) => void;
 }
 
-const numberFields = [
+const numberFields: { key: keyof EventRules; min: number; max?: number }[] = [
-	{
+	{ key: 'pitWindowLengthSec', min: -1 },
-		key: 'pitWindowLengthSec' as keyof EventRules,
+	{ key: 'driverStintTimeSec', min: -1 },
-		label: 'Pit Window Length (seconds)',
+	{ key: 'mandatoryPitstopCount', min: 0, max: 5 },
-		min: -1
+	{ key: 'maxTotalDrivingTime', min: -1 },
-	},
+	{ key: 'maxDriversCount', min: 1, max: 10 },
-	{
+	{ key: 'tyreSetCount', min: 0, max: 50 }
-		key: 'driverStintTimeSec' as keyof EventRules,
-		label: 'Driver Stint Time (seconds)',
-		min: -1
-	},
-	{
-		key: 'mandatoryPitstopCount' as keyof EventRules,
-		label: 'Mandatory Pitstop Count',
-		min: 0,
-		max: 5
-	},
-	{
-		key: 'maxTotalDrivingTime' as keyof EventRules,
-		label: 'Max Total Driving Time (seconds)',
-		min: -1
-	},
-	{
-		key: 'maxDriversCount' as keyof EventRules,
-		label: 'Max Drivers Count',
-		min: 1,
-		max: 10
-	},
-	{
-		key: 'tyreSetCount' as keyof EventRules,
-		label: 'Tyre Set Count',
-		min: 0,
-		max: 50
-	}
 ];
 
-const booleanFields = [
+const booleanFields: { key: keyof EventRules }[] = [
-	{
+	{ key: 'isRefuellingAllowedInRace' },
-		key: 'isRefuellingAllowedInRace' as keyof EventRules,
+	{ key: 'isRefuellingTimeFixed' },
-		label: 'Refuelling Allowed in Race'
+	{ key: 'isMandatoryPitstopRefuellingRequired' },
-	},
+	{ key: 'isMandatoryPitstopTyreChangeRequired' },
-	{
+	{ key: 'isMandatoryPitstopSwapDriverRequired' }
-		key: 'isRefuellingTimeFixed' as keyof EventRules,
-		label: 'Refuelling Time Fixed'
-	},
-	{
-		key: 'isMandatoryPitstopRefuellingRequired' as keyof EventRules,
-		label: 'Mandatory Pitstop Refuelling Required'
-	},
-	{
-		key: 'isMandatoryPitstopTyreChangeRequired' as keyof EventRules,
-		label: 'Mandatory Pitstop Tyre Change Required'
-	},
-	{
-		key: 'isMandatoryPitstopSwapDriverRequired' as keyof EventRules,
-		label: 'Mandatory Pitstop Swap Driver Required'
-	}
 ];
 
 export function EventRulesEditor({ formData, disabled, onFormDataChange }: EventRulesEditorProps) {
@@ -78,7 +37,7 @@ export function EventRulesEditor({ formData, disabled, onFormDataChange }: Event
 				<h3 className="border-b border-border-muted pb-2 text-sm font-semibold text-primary">Race Rules</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2">
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">Qualify Standing Type</label>
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.qualifyStandingType}</label>
 						<select
 							disabled={disabled}
 							value={formData.qualifyStandingType}
@@ -89,9 +48,9 @@ export function EventRulesEditor({ formData, disabled, onFormDataChange }: Event
 							<option value={2}>Average Lap</option>
 						</select>
 					</div>
-					{numberFields.map(({ key, label, min, max }) => (
+					{numberFields.map(({ key, min, max }) => (
 						<div key={key}>
-							<label className="mb-1.5 block text-sm font-medium text-secondary">{label}</label>
+							<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS[key]}</label>
 							<input
 								type="number"
 								disabled={disabled}
@@ -111,9 +70,9 @@ export function EventRulesEditor({ formData, disabled, onFormDataChange }: Event
 					Pitstop & Refuelling Rules
 				</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2">
-					{booleanFields.map(({ key, label }) => (
+					{booleanFields.map(({ key }) => (
 						<div key={key}>
-							<label className="mb-1.5 block text-sm font-medium text-secondary">{label}</label>
+							<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS[key]}</label>
 							<select
 								disabled={disabled}
 								value={formData[key] ? 'true' : 'false'}

src/components/configuration/ServerSettingsEditor.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import type { ServerSettings } from '@/lib/schemas/config';
+import { FIELD_LABELS } from '@/lib/schemas/config';
 
 interface ServerSettingsEditorProps {
 	formData: ServerSettings;
@@ -8,86 +9,31 @@ interface ServerSettingsEditorProps {
 	onFormDataChange: (data: ServerSettings) => void;
 }
 
-const textFields = [
+const textFields: { key: keyof ServerSettings; type: 'text' | 'password' }[] = [
-	{
+	{ key: 'serverName', type: 'text' },
-		key: 'serverName' as keyof ServerSettings,
+	{ key: 'adminPassword', type: 'password' },
-		label: 'Server Name',
+	{ key: 'password', type: 'password' },
-		type: 'text'
+	{ key: 'spectatorPassword', type: 'password' },
-	},
+	{ key: 'centralEntryListPath', type: 'text' }
-	{
-		key: 'adminPassword' as keyof ServerSettings,
-		label: 'Admin Password',
-		type: 'password'
-	},
-	{
-		key: 'password' as keyof ServerSettings,
-		label: 'Password',
-		type: 'password'
-	},
-	{
-		key: 'spectatorPassword' as keyof ServerSettings,
-		label: 'Spectator Password',
-		type: 'password'
-	},
-	{
-		key: 'centralEntryListPath' as keyof ServerSettings,
-		label: 'Central Entry List Path',
-		type: 'text'
-	}
 ];
 
 const carGroups = ['FreeForAll', 'GT3', 'GT4', 'GT2', 'GTC', 'TCX'];
 
-const numberFields = [
+const numberFields: { key: keyof ServerSettings; min: number; max: number }[] = [
-	{
+	{ key: 'trackMedalsRequirement', min: 0, max: 3 },
-		key: 'trackMedalsRequirement' as keyof ServerSettings,
+	{ key: 'safetyRatingRequirement', min: -1, max: 99 },
-		label: 'Track Medals Requirement',
+	{ key: 'racecraftRatingRequirement', min: -1, max: 99 },
-		min: 0,
+	{ key: 'maxCarSlots', min: 1, max: 30 }
-		max: 3
-	},
-	{
-		key: 'safetyRatingRequirement' as keyof ServerSettings,
-		label: 'Safety Rating Requirement',
-		min: -1,
-		max: 99
-	},
-	{
-		key: 'racecraftRatingRequirement' as keyof ServerSettings,
-		label: 'Racecraft Rating Requirement',
-		min: -1,
-		max: 99
-	},
-	{
-		key: 'maxCarSlots' as keyof ServerSettings,
-		label: 'Max Car Slots',
-		min: 1,
-		max: 30
-	}
 ];
 
-const selectFields = [
+const selectFields: { key: keyof ServerSettings }[] = [
-	{
+	{ key: 'dumpLeaderboards' },
-		key: 'dumpLeaderboards' as keyof ServerSettings,
+	{ key: 'isRaceLocked' },
-		label: 'Dump Leaderboards'
+	{ key: 'randomizeTrackWhenEmpty' },
-	},
+	{ key: 'allowAutoDQ' },
-	{ key: 'isRaceLocked' as keyof ServerSettings, label: 'Race Locked' },
+	{ key: 'shortFormationLap' },
-	{
+	{ key: 'dumpEntryList' },
-		key: 'randomizeTrackWhenEmpty' as keyof ServerSettings,
+	{ key: 'ignorePrematureDisconnects' }
-		label: 'Randomize Track When Empty'
-	},
-	{ key: 'allowAutoDQ' as keyof ServerSettings, label: 'Allow Auto DQ' },
-	{
-		key: 'shortFormationLap' as keyof ServerSettings,
-		label: 'Short Formation Lap'
-	},
-	{
-		key: 'dumpEntryList' as keyof ServerSettings,
-		label: 'Dump Entry List'
-	},
-	{
-		key: 'ignorePrematureDisconnects' as keyof ServerSettings,
-		label: 'Ignore Premature Disconnects'
-	}
 ];
 
 export function ServerSettingsEditor({ formData, disabled, onFormDataChange }: ServerSettingsEditorProps) {
@@ -102,9 +48,9 @@ export function ServerSettingsEditor({ formData, disabled, onFormDataChange }: S
 					Basic Settings
 				</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2">
-					{textFields.map(({ key, label, type }) => (
+					{textFields.map(({ key, type }) => (
 						<div key={key}>
-							<label className="mb-1.5 block text-sm font-medium text-secondary">{label}</label>
+							<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS[key]}</label>
 							<input
 								type={type}
 								disabled={disabled}
@@ -116,7 +62,7 @@ export function ServerSettingsEditor({ formData, disabled, onFormDataChange }: S
 					))}
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">Car Group</label>
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.carGroup}</label>
 						<select
 							disabled={disabled}
 							value={formData.carGroup}
@@ -138,9 +84,9 @@ export function ServerSettingsEditor({ formData, disabled, onFormDataChange }: S
 					Requirements & Limits
 				</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2 lg:grid-cols-3">
-					{numberFields.map(({ key, label, min, max }) => (
+					{numberFields.map(({ key, min, max }) => (
 						<div key={key}>
-							<label className="mb-1.5 block text-sm font-medium text-secondary">{label}</label>
+							<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS[key]}</label>
 							<input
 								type="number"
 								disabled={disabled}
@@ -160,9 +106,9 @@ export function ServerSettingsEditor({ formData, disabled, onFormDataChange }: S
 					Race Options
 				</h3>
 				<div className="grid grid-cols-1 gap-6 md:grid-cols-2 lg:grid-cols-3">
-					{selectFields.map(({ key, label }) => (
+					{selectFields.map(({ key }) => (
 						<div key={key}>
-							<label className="mb-1.5 block text-sm font-medium text-secondary">{label}</label>
+							<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS[key]}</label>
 							<select
 								disabled={disabled}
 								value={formData[key] as number}
@@ -176,9 +122,7 @@ export function ServerSettingsEditor({ formData, disabled, onFormDataChange }: S
 					))}
 
 					<div>
-						<label className="mb-1.5 block text-sm font-medium text-secondary">
+						<label className="mb-1.5 block text-sm font-medium text-secondary">{FIELD_LABELS.formationLapType}</label>
-							Formation Lap Type
-						</label>
 						<select
 							disabled={disabled}
 							value={formData.formationLapType}

src/components/server/ServerConfigurationTabs.tsx

@@ -224,7 +224,13 @@ export function ServerConfigurationTabs({
 			{isConfigTab && (
 				<div className="border-border-muted bg-overlay flex items-center justify-between border-b px-5 py-3">
 					<div className="flex items-center gap-3">
-						{saveError && <p className="text-red text-sm">{saveError}</p>}
+						{saveError && (
+						<ul className="flex flex-col gap-0.5">
+							{saveError.split('\n').map((line, i) => (
+								<li key={i} className="text-red text-sm">• {line}</li>
+							))}
+						</ul>
+					)}
 						{saveSuccess && <p className="text-green text-sm">All configurations saved.</p>}
 					</div>
 					<div className="flex items-center gap-4">

src/lib/actions/auth.ts

@@ -3,6 +3,7 @@
 import { redirect } from 'next/navigation';
 import { loginUser, getOpenToken } from '@/lib/api/server/auth';
 import { login, logout } from '@/lib/auth/server';
+import { formatZodIssues } from '@/lib/utils';
 import { loginSchema, loginResponseSchema } from '../schemas';
 
 export type LoginResult = {
@@ -19,7 +20,7 @@ export async function loginAction(prevState: LoginResult, formData: FormData) {
 		if (!loginData.success) {
 			return {
 				success: false,
-				message: loginData.error.issues[0]?.message ?? 'Validation failed'
+				message: formatZodIssues(loginData.error.issues)
 			};
 		}
 

src/lib/actions/configuration.ts

@@ -3,6 +3,7 @@
 import { revalidatePath } from 'next/cache';
 import { requireAuth } from '@/lib/auth/server';
 import { getServerConfigurations, updateServerConfiguration, bulkUpdateServerConfigurations } from '@/lib/api/server/configuration';
+import { boolToInt, formatZodIssues } from '@/lib/utils';
 import {
 	assistRulesSchema,
 	ConfigFile,
@@ -34,7 +35,6 @@ export async function getConfigurationsAction(
 		};
 	}
 }
-import { boolToInt } from '@/lib/utils';
 
 export async function updateConfigurationAction(serverId: string, formData: FormData) {
 	try {
@@ -87,7 +87,7 @@ export async function updateAssistRulesAction(serverId: string, formData: FormDa
 
 		const config = assistRulesSchema.safeParse(rawConfig);
 		if (!config.success) {
-			return { success: false, message: config.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(config.error.issues) };
 		}
 
 		await updateServerConfiguration(
@@ -135,7 +135,7 @@ export async function updateServerSettingsAction(serverId: string, formData: For
 		};
 		const config = serverSettingsSchema.safeParse(rawConfig);
 		if (!config.success) {
-			return { success: false, message: config.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(config.error.issues) };
 		}
 
 		await updateServerConfiguration(
@@ -182,7 +182,7 @@ export async function updateEventConfigAction(serverId: string, formData: FormDa
 		};
 		const config = eventConfigSchema.safeParse(rawConfig);
 		if (!config.success) {
-			return { success: false, message: config.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(config.error.issues) };
 		}
 
 		await updateServerConfiguration(
@@ -231,7 +231,7 @@ export async function updateEventRulesAction(serverId: string, formData: FormDat
 
 		const config = eventRulesSchema.safeParse(rawConfig);
 		if (!config.success) {
-			return { success: false, message: config.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(config.error.issues) };
 		}
 
 		await updateServerConfiguration(
@@ -262,7 +262,7 @@ export async function bulkUpdateConfigurationsAction(
 
 		const validated = configurationsSchema.partial().safeParse(configs);
 		if (!validated.success) {
-			return { success: false, message: validated.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(validated.error.issues) };
 		}
 
 		await bulkUpdateServerConfigurations(session.token!, serverId, validated.data, restart);

src/lib/actions/leaderboard.ts

@@ -3,6 +3,7 @@
 import { revalidatePath } from 'next/cache';
 import { requireAuth } from '@/lib/auth/server';
 import { fetchServerAPI } from '@/lib/api/server/base';
+import { formatZodIssues } from '@/lib/utils';
 import { leaderboardSchema, type Leaderboard } from '@/lib/schemas/leaderboard';
 
 export async function saveLeaderboardAction(serverId: string, data: Leaderboard) {
@@ -10,7 +11,7 @@ export async function saveLeaderboardAction(serverId: string, data: Leaderboard)
 		const session = await requireAuth();
 		const validated = leaderboardSchema.safeParse(data);
 		if (!validated.success) {
-			return { success: false, message: validated.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(validated.error.issues) };
 		}
 		await fetchServerAPI(`/server/${serverId}/leaderboard`, session.token!, 'PUT', validated.data);
 		revalidatePath(`/dashboard/server/${serverId}`);

src/lib/actions/membership.ts

@@ -3,6 +3,7 @@
 import { revalidatePath } from 'next/cache';
 import { requireAuth } from '@/lib/auth/server';
 import { createUser, deleteUser } from '@/lib/api/server/membership';
+import { formatZodIssues } from '@/lib/utils';
 import { userCreateSchema } from '../schemas';
 
 export async function createUserAction(formData: FormData) {
@@ -15,7 +16,7 @@ export async function createUserAction(formData: FormData) {
 		const rawData = { username, password, role };
 		const data = userCreateSchema.safeParse(rawData);
 		if (!data.success) {
-			return { success: false, message: data.error.issues[0]?.message ?? 'Validation failed' };
+			return { success: false, message: formatZodIssues(data.error.issues) };
 		}
 
 		await createUser(session.token!, data.data);

src/lib/schemas/activityLog.ts

@@ -5,16 +5,20 @@ export const actionTypeSchema = z.enum([
 	'server_start',
 	'server_stop',
 	'server_restart',
-	'leaderboard_update'
+	'leaderboard_update',
+	'preset_create',
+	'preset_apply'
 ]);
 
 export type ActionType = z.infer<typeof actionTypeSchema>;
 
 // Minimal server shape embedded in activity log responses (avoids circular import with server.ts)
-const embeddedServerSchema = z.object({
+const embeddedServerSchema = z
+	.object({
 		id: z.string(),
 		name: z.string()
-}).passthrough();
+	})
+	.passthrough();
 
 export type EmbeddedServer = z.infer<typeof embeddedServerSchema>;
 
@@ -58,5 +62,7 @@ export const ACTION_TYPE_LABELS: Record<ActionType, string> = {
 	server_start: 'Server Start',
 	server_stop: 'Server Stop',
 	server_restart: 'Server Restart',
-	leaderboard_update: 'Leaderboard Update'
+	leaderboard_update: 'Leaderboard Update',
+	preset_create: 'Preset Create',
+	preset_apply: 'Preset Apply'
 };

src/lib/schemas/config.ts

@@ -138,3 +138,76 @@ export const configSchemaMap = {
 };
 
 export type Config = Configuration | AssistRules | EventConfig | EventRules | ServerSettings;
+
+export const SECTION_LABELS: Record<string, string> = {
+	configuration: 'Configuration',
+	assistRules: 'Assist Rules',
+	event: 'Event Config',
+	eventRules: 'Event Rules',
+	settings: 'Server Settings'
+};
+
+export const FIELD_LABELS: Record<string, string> = {
+	// configuration.json
+	udpPort: 'UDP Port',
+	tcpPort: 'TCP Port',
+	maxConnections: 'Max Connections',
+	lanDiscovery: 'LAN Discovery',
+	registerToLobby: 'Register To Lobby',
+	configVersion: 'Config Version',
+	// assistRules.json
+	stabilityControlLevelMax: 'Stability Control Level Max',
+	disableAutosteer: 'Disable Autosteer',
+	disableAutoLights: 'Disable Auto Lights',
+	disableAutoWiper: 'Disable Auto Wiper',
+	disableAutoEngineStart: 'Disable Auto Engine Start',
+	disableAutoPitLimiter: 'Disable Auto Pit Limiter',
+	disableAutoGear: 'Disable Auto Gear',
+	disableAutoClutch: 'Disable Auto Clutch',
+	disableIdealLine: 'Disable Ideal Line',
+	// event.json
+	track: 'Track',
+	preRaceWaitingTimeSeconds: 'Pre-Race Waiting Time (seconds)',
+	sessionOverTimeSeconds: 'Session Over Time (seconds)',
+	ambientTemp: 'Ambient Temperature (°C)',
+	cloudLevel: 'Cloud Level (0.0-1.0)',
+	rain: 'Rain (0.0-1.0)',
+	weatherRandomness: 'Weather Randomness',
+	postQualySeconds: 'Post Qualify Seconds',
+	postRaceSeconds: 'Post Race Seconds',
+	simracerWeatherConditions: 'Simracer Weather Conditions',
+	isFixedConditionQualification: 'Fixed Condition Qualification',
+	sessions: 'Sessions',
+	// eventRules.json
+	qualifyStandingType: 'Qualify Standing Type',
+	pitWindowLengthSec: 'Pit Window Length (seconds)',
+	driverStintTimeSec: 'Driver Stint Time (seconds)',
+	mandatoryPitstopCount: 'Mandatory Pitstop Count',
+	maxTotalDrivingTime: 'Max Total Driving Time (seconds)',
+	maxDriversCount: 'Max Drivers Count',
+	isRefuellingAllowedInRace: 'Refuelling Allowed in Race',
+	isRefuellingTimeFixed: 'Refuelling Time Fixed',
+	isMandatoryPitstopRefuellingRequired: 'Mandatory Pitstop Refuelling Required',
+	isMandatoryPitstopTyreChangeRequired: 'Mandatory Pitstop Tyre Change Required',
+	isMandatoryPitstopSwapDriverRequired: 'Mandatory Pitstop Swap Driver Required',
+	tyreSetCount: 'Tyre Set Count',
+	// settings.json
+	serverName: 'Server Name',
+	adminPassword: 'Admin Password',
+	carGroup: 'Car Group',
+	trackMedalsRequirement: 'Track Medals Requirement',
+	safetyRatingRequirement: 'Safety Rating Requirement',
+	racecraftRatingRequirement: 'Racecraft Rating Requirement',
+	password: 'Password',
+	spectatorPassword: 'Spectator Password',
+	maxCarSlots: 'Max Car Slots',
+	dumpLeaderboards: 'Dump Leaderboards',
+	isRaceLocked: 'Race Locked',
+	randomizeTrackWhenEmpty: 'Randomize Track When Empty',
+	centralEntryListPath: 'Central Entry List Path',
+	allowAutoDQ: 'Allow Auto DQ',
+	shortFormationLap: 'Short Formation Lap',
+	dumpEntryList: 'Dump Entry List',
+	formationLapType: 'Formation Lap Type',
+	ignorePrematureDisconnects: 'Ignore Premature Disconnects'
+};

src/lib/utils.ts

@@ -1,5 +1,6 @@
 import { clsx, type ClassValue } from 'clsx';
 import { twMerge } from 'tailwind-merge';
+import { FIELD_LABELS, SECTION_LABELS } from '@/lib/schemas/config';
 
 export function cn(...inputs: ClassValue[]) {
 	return twMerge(clsx(inputs));
@@ -10,5 +11,18 @@ export function boolToInt(val: boolean) {
 }
 
 export function intToBool(val: number) {
-  return !!val
+	return !!val;
+}
+
+export function formatZodIssues(issues: Array<{ path: PropertyKey[]; message: string }>): string {
+	return issues
+		.map((issue) => {
+			const path = issue.path.map(String);
+			const sectionKey = path.length > 1 ? path[0] : null;
+			const fieldKey = path.at(-1) ?? '';
+			const section = sectionKey && SECTION_LABELS[sectionKey] ? `[${SECTION_LABELS[sectionKey]}] ` : '';
+			const label = FIELD_LABELS[fieldKey] ?? fieldKey;
+			return `${section}${label}: ${issue.message}`;
+		})
+		.join('\n');
 }