feat: add config preset manager

src/lib/api/server/base.ts

@@ -30,7 +30,14 @@ export async function fetchServerAPI<T>(
 		if (response.status == 401) {
 			redirect('/login?expired=true');
 		}
-		throw new Error(`API Error: ${response.statusText} - ${method} - ${BASE_URL}${endpoint}`);
+		let message = response.statusText;
+		try {
+			const body = await response.json();
+			message = body?.error ?? body?.message ?? message;
+		} catch {
+			// non-JSON error body, keep statusText
+		}
+		throw new Error(message);
 	}
 
 	if (response.headers.get('Content-Type')?.includes('application/json')) {

src/lib/api/server/presets.ts

@@ -0,0 +1,43 @@
+import { fetchServerAPI } from './base';
+import { configPresetSchema, type ConfigPreset } from '@/lib/schemas/preset';
+import type { ConfigAuditRecord } from './configuration';
+
+const route = '/presets';
+
+export type ConfigPresetCreateRequest = {
+	name: string;
+	description?: string;
+	configuration?: Record<string, unknown> | null;
+	assistRules?: Record<string, unknown> | null;
+	event?: Record<string, unknown> | null;
+	eventRules?: Record<string, unknown> | null;
+	settings?: Record<string, unknown> | null;
+};
+
+export async function createPreset(
+	token: string,
+	data: ConfigPresetCreateRequest
+): Promise<ConfigPreset> {
+	const response = await fetchServerAPI<ConfigPreset>(route, token, 'POST', data);
+	return configPresetSchema.parse(response.data);
+}
+
+export async function listPresets(token: string, name?: string): Promise<ConfigPreset[]> {
+	const query = name ? `?name=${encodeURIComponent(name)}` : '';
+	const response = await fetchServerAPI<ConfigPreset[]>(`${route}${query}`, token);
+	return configPresetSchema.array().parse(response.data);
+}
+
+export async function applyPreset(
+	token: string,
+	serverId: string,
+	presetId: string,
+	restart = false
+): Promise<ConfigAuditRecord[]> {
+	const response = await fetchServerAPI<ConfigAuditRecord[]>(
+		`/server/${serverId}/config/presets/${presetId}/apply?restart=${restart}`,
+		token,
+		'POST'
+	);
+	return response.data ?? [];
+}