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fix(solid): SSR render effect and projection retries run under their own render's context (#3984)

#3983 restored the creating render's sharedConfig.context around an async
memo's retry. The render effect's retry (ctx.block(source.then(retry)))
and a projection's re-derive (runProjection, re-run by settleServerAsync
through subscribePendingRetry; also createStore(fn) and
createOptimisticStore(fn)) captured the context at creation the same way
and never reinstated it, so under concurrent requests the retry ran under
whichever render set the context last. Both now set it around the pass,
the render effect's around its effect run too.

The #3972 spec gains one test per primitive: each pass, first and retry,
sees its own render's context. The render effect, projection,
createStore(fn) and createOptimisticStore(fn) cases fail on next.


Claude-Session: https://claude.ai/code/session_017PDt8Jv6uf5xRDsrux4UwF

Co-authored-by: Claude <noreply@anthropic.com>

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