Ask joins the dots across sentences

The headline is about reading, which is the point of this browser. When you Ask your reading a question, the answer is pulled from the pages you have actually read, entirely on your own machine. Until now each answer was a single sentence lifted from a page - but the thing that answers a question is often split across two: one sentence names the subject, the next says what it does. Returning only the higher-scoring half quietly lost the rest. Ask now stitches an adjacent pair into one answer whenever the following sentence adds something the first is missing, so the answer reads as a complete thought instead of a fragment. It stays tight: it fuses at most one neighbour, and only when that neighbour genuinely adds to the answer. Alongside it, two engine changes. Asking a value's type with `typeof` no longer allocates a fresh little string every single time - the eight possible answers are shared - which quietly speeds up both the fast path and ordinary code, because `typeof` is everywhere on a real page. And a correctness fix: `AbortSignal`, which pages use to cancel a fetch, now reports itself as a function the way every other browser does, so code that feature-detects it takes the right branch. The engine gate holds at 6375 of 6375.