fix(solid-router): defer adapter hydration payloads

[Fnine59]

Fixes #8104.

Solid's SSR serializer can emit hydration data before the router bootstrap and before hydrate() installs the custom adapter map. Adapter expressions in those eager scripts therefore read $_TSR.t too early.

This change routes a Solid hydration payload through the router's existing buffer once a custom adapter participates in serialization. If the payload arrives before the bootstrap, it creates only an early buffer that the real bootstrap adopts. The complete payload and all later serializer chunks stay in order, so hydrate() installs the adapter map and runs the real fromSerializable function before Solid hydration consumes the value; there is no identity fallback.

Regression coverage exercises both missing-$_TSR and missing-.t timing, payloads that arrive after initialization, preservation of the pre-bootstrap queue, restoration of a Money instance and its method, and the unchanged default serializer path when no adapters are configured.

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