feat: add svm crate#21
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What changed
Added the
solana-svmcrate, an engine-shaped fork of Agave's crate patched inworkspace-wide via
[patch.crates-io].Why
The engine needs a transaction loader/executor that is caller-owned at the
transaction boundary, so persistence and commit policy live above it rather than
inside a validator bank.
Closes #8.
Impact
transaction_processing_callback,executes via
solana-program-runtime, and returns the mutated account set.native-loader /
PROGRAM_OWNERSownership before execution.intentionally out of scope.
Reviewer notes
Rent-state and lamport-balance checks still run around execution, but this runtime
owns no validator state. See
solana/README.md(Runtime Scope).Follow-up
processorschedules transactions through this SVM upstack.