refactor(wsdb): migrate aztec-wsdb to ipc-codegen + ipc-runtime

[charlielye]

Summary

Migrates aztec-wsdb to the shared /ipc-codegen + /ipc-runtime foundation from #23610, and introduces the generated @aztec/wsdb TypeScript service package.

This is the second PR in the single IPC 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 — this PR
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 aztec-avm + aztec-cdb binaries and IPC supporting code (inert) #23084 cl/ipc-4-avm-binary
8. feat: AVM cutover — delete NAPI AVM, wire IPC simulator pool + CDB IPC server [PR 3b] #23697 cl/ipc-5-avm-cutover

What changes

C++ wsdb

• Commits wsdb_schema.json next to the wsdb C++ service.
• Generates wsdb C++ IPC client/server/types from the schema during CMake builds.
• Replaces hand-written wsdb command dispatch with codegen-emitted dispatch plus typed handlers.
• Uses ipc_runtime server/client helpers and signal handling.
• Adds the barretenberg C++ integration glue needed by generated wsdb code: the ipc_runtime CMake target, include path, throw macro guard, and msgpack adaptor guards so legacy bb serialization and generated IPC support can coexist.
• Keeps handlers operating on primitive wire types, with explicit conversion at the domain boundary.
• Moves the VM2 wsdb adapter ownership to VM2 simulation code, so wsdb does not own VM2-specific integration.

Generated TypeScript package

• Adds a top-level wsdb/ package generated from the wsdb schema.
• wsdb/bootstrap.sh generates wsdb/ts, builds it, copies the host aztec-wsdb binary, and prepares the host arch package.
• Release flow prepares all available arch packages and publishes the arch packages plus wrapper.
• The generated wrapper declares @aztec/wsdb-{linux,darwin}-{x64,arm64} as optional dependencies directly in package.json.
• Monorepo consumers use resolutions/portals for local generated packages; published consumers install @aztec/wsdb and get the matching arch package automatically.
• ci3/release_prep_package_json now only stamps declared dependencies; it no longer discovers and injects arch packages at release time.

Validation

• wsdb/bootstrap.sh
• Generated package binary resolution smoke check for @aztec/wsdb.
• Release-prep smoke check: wrapper, @aztec/ipc-runtime, and wsdb arch package deps stamp to the release version.
• Root ./bootstrap.sh passed on this branch during stack validation.
• Latest PR-boundary check: reran wsdb/bootstrap.sh after moving the barretenberg C++ integration from feat(ipc): add /ipc-codegen and /ipc-runtime foundation packages #23610 into this PR.

[ludamad]

nit: pre-existing typo

[ludamad]

No qualms, but I expect someone more familiar with WSDB should have a look