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/admin/ocr/page.server.spec.ts

@@ -14,7 +14,11 @@ describe('admin/ocr — load', () => {
 			data: { availableBlocks: 10, ocrServiceAvailable: true, senderModels: [] }
 		});
 
-		const result = (await load({ fetch } as never))!;
+		const result = (await load({
+			fetch,
+			request: new Request('http://localhost/admin/ocr'),
+			url: new URL('http://localhost/admin/ocr')
+		} as never))!;
 
 		expect(result.trainingInfo.availableBlocks).toBe(10);
 		expect(result.trainingInfo.ocrServiceAvailable).toBe(true);
@@ -23,6 +27,12 @@ describe('admin/ocr — load', () => {
 	it('throws 503 when OCR API call fails', async () => {
 		mockApi.GET.mockResolvedValue({ response: { ok: false, status: 503 }, error: {} });
 
-		await expect(load({ fetch } as never)).rejects.toMatchObject({ status: 503 });
+		await expect(
+			load({
+				fetch,
+				request: new Request('http://localhost/admin/ocr'),
+				url: new URL('http://localhost/admin/ocr')
+			} as never)
+		).rejects.toMatchObject({ status: 503 });
 	});
 });