Implement Owner Panel features and maintenance mode handling

- Introduced the Owner Panel with new routes and UI components for managing guilds, user blacklists, feature flags, and bot presence.
- Added maintenance mode functionality to prevent non-owner users from executing commands during maintenance periods.
- Enhanced localization with new keys for Owner Panel features in both English and German.
- Updated job processing to include a presence refresh job, ensuring the bot's status is regularly updated.
- Improved environment configuration to support owner user IDs for access control.

packages/shared/src/owner.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, it } from 'vitest';
+import {
+  BotPresenceConfigSchema,
+  FeatureFlagUpsertSchema,
+  ownerRoleAtLeast,
+  OwnerTeamUpsertSchema
+} from './owner.js';
+
+describe('owner schemas', () => {
+  it('parses presence config', () => {
+    const parsed = BotPresenceConfigSchema.parse({
+      status: 'online',
+      activityType: 'Playing',
+      activityText: 'nexumi.de',
+      rotatingMessages: ['a', 'b'],
+      maintenanceMode: false,
+      maintenanceMessage: null
+    });
+    expect(parsed.activityText).toBe('nexumi.de');
+  });
+
+  it('ranks owner roles', () => {
+    expect(ownerRoleAtLeast('ADMIN', 'SUPPORT')).toBe(true);
+    expect(ownerRoleAtLeast('VIEWER', 'ADMIN')).toBe(false);
+  });
+
+  it('validates team and flags', () => {
+    expect(
+      OwnerTeamUpsertSchema.parse({ userId: '123456789012345678', role: 'SUPPORT', note: null }).role
+    ).toBe('SUPPORT');
+    expect(
+      FeatureFlagUpsertSchema.parse({
+        key: 'new.module',
+        enabled: true,
+        rolloutPercent: 10,
+        whitelistGuildIds: []
+      }).rolloutPercent
+    ).toBe(10);
+  });
+});