fix(read-router): typecheck failure on result.outcome.answer access

CI typecheck failed at src/read-router/__tests__/read-router.test.ts:211
because result.outcome was inferred as unknown when calling
.startsWith() on it. Tests passed locally because vitest doesn't run
strict TS on test files; pnpm typecheck does.

Fix: pass the explicit { answer: string } type parameter to
decideAndDispatch so the result is correctly typed.

  - const result = await router.decideAndDispatch('Q?', ['e1', 'e2']);
  + const result = await router.decideAndDispatch<{ answer: string }>(
  +   'Q?',
  +   ['e1', 'e2'],
  + );

163/163 router-family tests still pass. Full agentos typecheck clean.

Author: jddunn

src/read-router/__tests__/read-router.test.ts

@@ -207,7 +207,10 @@ describe('ReadRouter.decideAndDispatch: composes', () => {
         'scratchpad-then-answer': async () => ({ answer: 'X-scratch' }),
       }),
     });
-    const result = await router.decideAndDispatch('Q?', ['e1', 'e2']);
+    const result = await router.decideAndDispatch<{ answer: string }>(
+      'Q?',
+      ['e1', 'e2'],
+    );
     expect(result.outcome.answer.startsWith('X')).toBe(true);
   });
 });