feat: cut simulator over to generated aztec-vm-sim IPC service

[charlielye]

Summary

Cuts the public simulator over from the legacy in-process NAPI AVM path to the generated @aztec/aztec-vm-sim IPC service package introduced in #23084.

The simulator now owns a TypeScript CDB IPC server for contract-data callbacks, while world-state access continues through the generated wsdb package/service from the lower stack.

Stack

1. feat(ipc): add /ipc-codegen and /ipc-runtime foundation packages #23610 cl/ipc-foundation
2. refactor(wsdb): migrate aztec-wsdb to ipc-codegen + ipc-runtime #23611 cl/ipc-wsdb-migrate
3. refactor(bbapi): migrate bb binary to ipc-codegen + ipc-runtime #23612 cl/ipc-bb-migrate
4. refactor(barretenberg-rs): migrate to ipc-codegen + ipc-runtime; drop PipeBackend #23613 cl/ipc-bb-rs-migrate
5. refactor(bb.js): migrate to ipc-codegen + ipc-runtime; delete legacy bb::ipc #23614 cl/ipc-bb-js-migrate
6. refactor: cut TS world state and NAPI AVM over to WSDB IPC; delete NAPI WSDB #23036 cl/ipc-3-avm-wsdb-cutover
7. feat: add generated aztec-vm-sim package setup #23084 cl/ipc-4-avm-binary
8. feat: cut simulator over to generated aztec-vm-sim IPC service #23697 cl/ipc-5-avm-cutover — this PR

What changes

AVM simulator cutover

• Adds AvmSimulatorPool and switches simulator/prover/node/TXE/validator paths to use the generated @aztec/aztec-vm-sim service wrapper.
• Renames socket-specific parameters to generic IPC paths where the value may be UDS or SHM.
• Uses explicit async disposal for the simulator pool, CDB server, wsdb service, and tests that own those resources.

CDB server generation

• Converts the AVM and CDB schemas to the newer friendly schema format.
• Removes the unused CDB shutdown command; process backends are controlled by normal process signalling.
• Generates TypeScript CDB server command/response types and request dispatch from the CDB schema.
• Leaves CdbIpcServer responsible only for UDS framing and implementing the generated handler interface.
• Ignores generated CDB TypeScript output and produces it from the simulator generation step during bootstrap.

Legacy NAPI cleanup

• Deletes the old AVM NAPI simulation implementation.
• Deletes the remaining msgpack client side-channel code from nodejs_module.
• Removes AVM simulation exports from @aztec/native, leaving the remaining native module focused on the native pieces that still live there.

Validation

• yarn build from yarn-project/simulator
• make aztec-vm-sim
• cmake --build build --target aztec-vm-sim nodejs_module from barretenberg/cpp
• yarn build from yarn-project
• ./bootstrap.sh format --check simulator from yarn-project
• JEST_MAX_WORKERS=1 yarn test public/cdb_ipc_server.test.ts public/public_processor/apps_tests/token.test.ts public/public_tx_simulator/apps_tests/token.test.ts public/public_processor/apps_tests/deployments.test.ts public/public_processor/public_processor.test.ts from yarn-project/simulator

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​@​aztec/​aztec-vm-sim@​0.0.0-use.local

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