feat: add fluxer upstream source and self-hosting documentation

- Clone of github.com/fluxerapp/fluxer (official upstream)
- SELF_HOSTING.md: full VM rebuild procedure, architecture overview,
  service reference, step-by-step setup, troubleshooting, seattle reference
- dev/.env.example: all env vars with secrets redacted and generation instructions
- dev/livekit.yaml: LiveKit config template with placeholder keys
- fluxer-seattle/: existing seattle deployment setup scripts

fluxer/packages/meilisearch_search/src/adapters/MeilisearchAuditLogAdapter.tsx

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {MeilisearchIndexAdapter} from '@fluxer/meilisearch_search/src/adapters/MeilisearchIndexAdapter';
+import {
+	compactFilters,
+	type MeilisearchFilter,
+	meiliEquals,
+} from '@fluxer/meilisearch_search/src/MeilisearchFilterUtils';
+import {MEILISEARCH_INDEX_DEFINITIONS} from '@fluxer/meilisearch_search/src/MeilisearchIndexDefinitions';
+import type {AuditLogSearchFilters, SearchableAuditLog} from '@fluxer/schema/src/contracts/search/SearchDocumentTypes';
+import type {MeiliSearch} from 'meilisearch';
+
+function buildAuditLogFilters(filters: AuditLogSearchFilters): Array<MeilisearchFilter | undefined> {
+	const clauses: Array<MeilisearchFilter | undefined> = [];
+
+	if (filters.adminUserId) clauses.push(meiliEquals('adminUserId', filters.adminUserId));
+	if (filters.targetType) clauses.push(meiliEquals('targetType', filters.targetType));
+	if (filters.targetId) clauses.push(meiliEquals('targetId', filters.targetId));
+	if (filters.action) clauses.push(meiliEquals('action', filters.action));
+
+	return compactFilters(clauses);
+}
+
+function buildAuditLogSort(filters: AuditLogSearchFilters): Array<string> | undefined {
+	const sortBy = filters.sortBy ?? 'createdAt';
+	if (sortBy === 'relevance') return undefined;
+	const sortOrder = filters.sortOrder ?? 'desc';
+	return [`createdAt:${sortOrder}`];
+}
+
+export interface MeilisearchAuditLogAdapterOptions {
+	client: MeiliSearch;
+	waitForTasks: {
+		enabled: boolean;
+		timeoutMs: number;
+		intervalMs: number;
+	};
+}
+
+export class MeilisearchAuditLogAdapter extends MeilisearchIndexAdapter<AuditLogSearchFilters, SearchableAuditLog> {
+	constructor(options: MeilisearchAuditLogAdapterOptions) {
+		super({
+			client: options.client,
+			index: MEILISEARCH_INDEX_DEFINITIONS.audit_logs,
+			buildFilters: buildAuditLogFilters,
+			buildSort: buildAuditLogSort,
+			waitForTasks: options.waitForTasks,
+		});
+	}
+}