feat(phase3): phase 7 - integration & polish

Fix all build/type/lint errors, write 46 new tests (222 total across
20 files), regenerate Prisma client, update seed with user preferences.
Fix SvelteSet usage, add {#each} keys, clean unused imports.

src/lib/server/services/__tests__/exportService.test.ts

@@ -0,0 +1,186 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+vi.mock('../../prisma.js', () => ({
+	prisma: {
+		app: { findMany: vi.fn() },
+		board: { findMany: vi.fn() },
+		group: { findMany: vi.fn() },
+		systemSettings: { upsert: vi.fn() }
+	}
+}));
+
+import { prisma } from '../../prisma.js';
+import { exportAllData } from '../exportService.js';
+
+const mockApp = prisma.app as unknown as { findMany: ReturnType<typeof vi.fn> };
+const mockBoard = prisma.board as unknown as { findMany: ReturnType<typeof vi.fn> };
+const mockGroup = prisma.group as unknown as { findMany: ReturnType<typeof vi.fn> };
+const mockSettings = prisma.systemSettings as unknown as {
+	upsert: ReturnType<typeof vi.fn>;
+};
+
+describe('exportService', () => {
+	beforeEach(() => {
+		vi.clearAllMocks();
+	});
+
+	describe('exportAllData', () => {
+		it('returns export data with version and timestamp', async () => {
+			mockApp.findMany.mockResolvedValue([]);
+			mockBoard.findMany.mockResolvedValue([]);
+			mockGroup.findMany.mockResolvedValue([]);
+			mockSettings.upsert.mockResolvedValue({
+				authMode: 'local',
+				registrationEnabled: true,
+				defaultTheme: 'dark',
+				defaultPrimaryColor: '#6366f1',
+				healthcheckDefaults: '{}'
+			});
+
+			const result = await exportAllData();
+
+			expect(result.version).toBe('1.0');
+			expect(result.exportedAt).toBeTruthy();
+			expect(result.apps).toEqual([]);
+			expect(result.boards).toEqual([]);
+			expect(result.groups).toEqual([]);
+			expect(result.settings).toEqual({
+				authMode: 'local',
+				registrationEnabled: true,
+				defaultTheme: 'dark',
+				defaultPrimaryColor: '#6366f1',
+				healthcheckDefaults: '{}'
+			});
+		});
+
+		it('maps apps to export format stripping internal fields', async () => {
+			mockApp.findMany.mockResolvedValue([
+				{
+					id: 'a1',
+					name: 'Gitea',
+					url: 'https://git.local',
+					icon: 'gitea',
+					iconType: 'simple',
+					description: 'Self-hosted Git',
+					category: 'dev',
+					tags: 'git,code',
+					healthcheckEnabled: true,
+					healthcheckInterval: 300,
+					healthcheckMethod: 'GET',
+					healthcheckExpectedStatus: 200,
+					healthcheckTimeout: 5000,
+					createdById: 'u1',
+					createdAt: new Date(),
+					updatedAt: new Date()
+				}
+			]);
+			mockBoard.findMany.mockResolvedValue([]);
+			mockGroup.findMany.mockResolvedValue([]);
+			mockSettings.upsert.mockResolvedValue({
+				authMode: 'local',
+				registrationEnabled: true,
+				defaultTheme: 'dark',
+				defaultPrimaryColor: '#6366f1',
+				healthcheckDefaults: '{}'
+			});
+
+			const result = await exportAllData();
+
+			expect(result.apps).toHaveLength(1);
+			expect(result.apps[0]).toEqual({
+				name: 'Gitea',
+				url: 'https://git.local',
+				icon: 'gitea',
+				iconType: 'simple',
+				description: 'Self-hosted Git',
+				category: 'dev',
+				tags: 'git,code',
+				healthcheckEnabled: true,
+				healthcheckInterval: 300,
+				healthcheckMethod: 'GET',
+				healthcheckExpectedStatus: 200,
+				healthcheckTimeout: 5000
+			});
+			// Internal fields should not be present
+			expect((result.apps[0] as Record<string, unknown>).id).toBeUndefined();
+			expect((result.apps[0] as Record<string, unknown>).createdById).toBeUndefined();
+		});
+
+		it('maps boards with nested sections and widgets', async () => {
+			mockApp.findMany.mockResolvedValue([]);
+			mockBoard.findMany.mockResolvedValue([
+				{
+					name: 'Dashboard',
+					icon: null,
+					description: 'Main board',
+					isDefault: true,
+					isGuestAccessible: false,
+					backgroundConfig: null,
+					sections: [
+						{
+							title: 'Apps',
+							icon: null,
+							order: 0,
+							isExpandedByDefault: true,
+							widgets: [
+								{
+									type: 'app',
+									order: 0,
+									config: '{}',
+									app: { name: 'Gitea' }
+								}
+							]
+						}
+					]
+				}
+			]);
+			mockGroup.findMany.mockResolvedValue([]);
+			mockSettings.upsert.mockResolvedValue({
+				authMode: 'local',
+				registrationEnabled: true,
+				defaultTheme: 'dark',
+				defaultPrimaryColor: '#6366f1',
+				healthcheckDefaults: '{}'
+			});
+
+			const result = await exportAllData();
+
+			expect(result.boards).toHaveLength(1);
+			expect(result.boards[0].name).toBe('Dashboard');
+			expect(result.boards[0].sections).toHaveLength(1);
+			expect(result.boards[0].sections[0].widgets).toHaveLength(1);
+			expect(result.boards[0].sections[0].widgets[0].appName).toBe('Gitea');
+		});
+
+		it('maps groups stripping internal fields', async () => {
+			mockApp.findMany.mockResolvedValue([]);
+			mockBoard.findMany.mockResolvedValue([]);
+			mockGroup.findMany.mockResolvedValue([
+				{
+					id: 'g1',
+					name: 'Admins',
+					description: 'Admin users',
+					isDefault: false,
+					createdAt: new Date(),
+					updatedAt: new Date()
+				}
+			]);
+			mockSettings.upsert.mockResolvedValue({
+				authMode: 'local',
+				registrationEnabled: true,
+				defaultTheme: 'dark',
+				defaultPrimaryColor: '#6366f1',
+				healthcheckDefaults: '{}'
+			});
+
+			const result = await exportAllData();
+
+			expect(result.groups).toHaveLength(1);
+			expect(result.groups[0]).toEqual({
+				name: 'Admins',
+				description: 'Admin users',
+				isDefault: false
+			});
+		});
+	});
+});