# Description of Changes

Fixes an OOM kill in the proptest `bsatn_invalid_wont_decode`.

`bsatn_invalid_wont_decode` generates arbitrary invalid bytes, proves
validation fails, then still calls full AlgebraicValue::decode. For
generated array-like types, decode reads a u32 length prefix, and the
generic array visitor then reserves that capacity. But because they're
random bytes, this could cause a huge initial allocation which could OOM
kill the test process.

Now the visitor reserves a smaller initial capacity instead of assuming
the binary input data is well formed.

# API and ABI breaking changes

N/A

# Expected complexity level and risk

1

# Testing

This should fix the flaky `spacetimedb-sats` `Test Suite` failures that
occasionally end in a SIGKILL.

…st' into jdetter/fix-sig-kill