fix(tests): add missing Sentry mock event fields across 14 spec files; fix test:coverage semicolon

`@sentry/sveltekit` wraps load functions and reads `event.request.method` and
`event.url.pathname`. Mock events that omitted `request` or `url` threw
`TypeError: Cannot read properties of undefined` on every invocation, silently
masking 86 test failures on main.

Two root causes fixed:
- Added `request: new Request(...)` (and `url: new URL(...)` where absent) to
  all mock event objects in 14 `*.server.spec.ts` files
- Changed `;` to `&&` in the `test:coverage` npm script so a failing server
  run propagates its exit code instead of being swallowed by the client run

All 576 server-project tests now pass.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/routes/documents/[id]/page.server.spec.ts

@@ -23,7 +23,9 @@ describe('document detail load — happy path', () => {
 
 		const result = await load({
 			params: { id: '123' },
-			fetch: mockFetch as unknown as typeof fetch
+			fetch: mockFetch as unknown as typeof fetch,
+			request: new Request('http://localhost/documents/123'),
+			url: new URL('http://localhost/documents/123')
 		});
 
 		expect(result.document.title).toBe('Testbrief');
@@ -44,7 +46,12 @@ describe('document detail load — error paths', () => {
 		const mockFetch = vi.fn();
 
 		await expect(
-			load({ params: { id: 'missing' }, fetch: mockFetch as unknown as typeof fetch })
+			load({
+				params: { id: 'missing' },
+				fetch: mockFetch as unknown as typeof fetch,
+				request: new Request('http://localhost/documents/123'),
+				url: new URL('http://localhost/documents/123')
+			})
 		).rejects.toMatchObject({ status: 404 });
 	});
 
@@ -59,7 +66,12 @@ describe('document detail load — error paths', () => {
 		const mockFetch = vi.fn();
 
 		await expect(
-			load({ params: { id: 'secret' }, fetch: mockFetch as unknown as typeof fetch })
+			load({
+				params: { id: 'secret' },
+				fetch: mockFetch as unknown as typeof fetch,
+				request: new Request('http://localhost/documents/123'),
+				url: new URL('http://localhost/documents/123')
+			})
 		).rejects.toMatchObject({ status: 403 });
 	});
 
@@ -74,7 +86,12 @@ describe('document detail load — error paths', () => {
 		const mockFetch = vi.fn();
 
 		await expect(
-			load({ params: { id: 'any' }, fetch: mockFetch as unknown as typeof fetch })
+			load({
+				params: { id: 'any' },
+				fetch: mockFetch as unknown as typeof fetch,
+				request: new Request('http://localhost/documents/123'),
+				url: new URL('http://localhost/documents/123')
+			})
 		).rejects.toMatchObject({ location: '/login' });
 	});
 });