Ivan FB e59703fad7
Migrate FFI to nim-ffi v0.2.0-rc.3 (typed procs, direct params)
Rewrite the C FFI over the new per-layer APIs using nim-ffi v0.2.0 typed
{.ffiCtor.}/{.ffiDtor.}/{.ffi.}/{.ffiEvent.} + CBOR, replacing the
hand-written cstring/JSON bridge and the declare/lifecycle scaffolding.

Final API shape from the start (no intermediate request wrappers):
- every {.ffi.} proc takes its parameters directly; the macro bundles them
  into the per-proc CBOR request, so no `*Request` objects are needed
- WakuMessage rides the wire directly (its fields are CBOR-serializable)
- multi-parameter {.ffiEvent.} via the rc.3 envelope synthesis
- events are fed by internal nim-broker listeners (no AppCallbacks)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-25 13:14:40 +02:00
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