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/api/src/admin/controllers/index.tsx

@@ -0,0 +1,65 @@
+/*
+ * 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 {AdminApiKeyAdminController} from '@fluxer/api/src/admin/controllers/AdminApiKeyAdminController';
+import {ArchiveAdminController} from '@fluxer/api/src/admin/controllers/ArchiveAdminController';
+import {AssetAdminController} from '@fluxer/api/src/admin/controllers/AssetAdminController';
+import {AuditLogAdminController} from '@fluxer/api/src/admin/controllers/AuditLogAdminController';
+import {BanAdminController} from '@fluxer/api/src/admin/controllers/BanAdminController';
+import {BulkAdminController} from '@fluxer/api/src/admin/controllers/BulkAdminController';
+import {ChildSafetyAdminController} from '@fluxer/api/src/admin/controllers/ChildSafetyAdminController';
+import {CodesAdminController} from '@fluxer/api/src/admin/controllers/CodesAdminController';
+import {DiscoveryAdminController} from '@fluxer/api/src/admin/controllers/DiscoveryAdminController';
+import {GatewayAdminController} from '@fluxer/api/src/admin/controllers/GatewayAdminController';
+import {GuildAdminController} from '@fluxer/api/src/admin/controllers/GuildAdminController';
+import {InstanceConfigAdminController} from '@fluxer/api/src/admin/controllers/InstanceConfigAdminController';
+import {LimitConfigAdminController} from '@fluxer/api/src/admin/controllers/LimitConfigAdminController';
+import {MessageAdminController} from '@fluxer/api/src/admin/controllers/MessageAdminController';
+import {ReportAdminController} from '@fluxer/api/src/admin/controllers/ReportAdminController';
+import {SearchAdminController} from '@fluxer/api/src/admin/controllers/SearchAdminController';
+import {SnowflakeReservationAdminController} from '@fluxer/api/src/admin/controllers/SnowflakeReservationAdminController';
+import {SystemDmAdminController} from '@fluxer/api/src/admin/controllers/SystemDmAdminController';
+import {UserAdminController} from '@fluxer/api/src/admin/controllers/UserAdminController';
+import {VisionarySlotAdminController} from '@fluxer/api/src/admin/controllers/VisionarySlotAdminController';
+import {VoiceAdminController} from '@fluxer/api/src/admin/controllers/VoiceAdminController';
+import type {HonoApp} from '@fluxer/api/src/types/HonoEnv';
+
+export function registerAdminControllers(app: HonoApp) {
+	AdminApiKeyAdminController(app);
+	UserAdminController(app);
+	CodesAdminController(app);
+	GuildAdminController(app);
+	AssetAdminController(app);
+	BanAdminController(app);
+	InstanceConfigAdminController(app);
+	LimitConfigAdminController(app);
+	SnowflakeReservationAdminController(app);
+	MessageAdminController(app);
+	BulkAdminController(app);
+	AuditLogAdminController(app);
+	ArchiveAdminController(app);
+	ReportAdminController(app);
+	ChildSafetyAdminController(app);
+	VoiceAdminController(app);
+	GatewayAdminController(app);
+	SearchAdminController(app);
+	DiscoveryAdminController(app);
+	VisionarySlotAdminController(app);
+	SystemDmAdminController(app);
+}