test: count the design-draft paid file and defer marathon ids in PR selection pins

The discovered paid-file census grows by one (skill-e2e-office-hours-design-draft).
Full-fallback PR selection defers every non-gate id; the shared-input pins now
expect periodic and marathon ids there.

test/eng-finding-retry-budget.test.ts

@@ -135,7 +135,7 @@ test('live periodic census fits the declared CI wall including setup', () => {
 
 test('registered allocation is deterministic and preserves every discovered file', () => {
   const files = collectPaidTestFiles();
-  expect(files).toHaveLength(104);
+  expect(files).toHaveLength(105);
   expect(files).toContain('test/skill-e2e-ship-skip.test.ts');
   const m = livePlan(files);
   expect(livePlan([...files].reverse())).toEqual(m);