liblogosdelivery is no longer consumed as a prebuilt Nix package; waku-bindings
compiles it from the Nim sources in its vendor submodule. The devShell drops the
prebuilt package and LOGOS_DELIVERY_LIB_DIR and instead supplies that build's
toolchain. CI checks out submodules recursively and caches the (slow, cold) Nim
build on the submodule commit; the toolchain-only jobs exclude every crate that
reaches the native lib, and format is scoped to workspace members so it never
rewrites the vendored generated sources.
Docs corrected along the way: the default transport is `file`, not
logos-delivery, and chat-cli no longer carries its own build.rs or a
logos_delivery transport module.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ai43sF2rymPFMG9iki9fwL
Both file and logos-delivery transports are now compiled into a single
binary and selected at runtime (default: logos-delivery), replacing the
env-var-driven build-time cfg.
Replace the direct use of `conversations::Context` with `client::ChatClient`,
which is the intended public API for library consumers.
Remove `MessageEnvelope` and the username-keyed session model. The envelope
was never part of the wire protocol — sender identity was only tracked in the
CLI's local state. Chats are now keyed by conversation ID; add `/nickname` as
the user-facing replacement for named sessions.
Add a logos-delivery (Waku) transport alongside the existing file transport.
The active transport is selected at compile time: set `LOGOS_DELIVERY_LIB_DIR`
to link liblogosdelivery, otherwise the file transport is used.
Add logos-delivery as a Nix flake input and expose `.#logos-delivery` so the
library can be built with `nix build` and referenced by `LOGOS_DELIVERY_LIB_DIR`.
CI: rename `c-ffi-smoketest` to `smoketest`; add logos-delivery build step
and a `--smoketest` invocation of chat-cli to verify startup.
