ginuerzh
3646c23398
Pull node-resolution logic out of dial/dialTLS into pure resolveHTTPNode and resolveTLSNode helpers. This separates node selection (bypass, hop, fallback) from connection establishment, making both independently testable. Add 21 new tests covering bypass, hop selection, nil-hop, addr fallback, upgrade response type mismatch, websocket frames, response body rewriting, and h2 preface validation.