Lands the remaining ADR-120 work in ruflo now that upstream
ruvnet/midstream#81 shipped midstreamer@0.3.1 with real QUIC.
## Step 3 — `v3/crates/ruflo-federation-peer/`
New Rust crate that composes the QUIC transport (midstreamer-quic
or any TransportProvider impl) with the AIMDS 3-gate safety
pipeline (any SafetyGate impl) into a single Peer<T, G, D> dispatch
loop. Replaces today's Node-bridge → Node-MCP → Rust-crate path
with one process per federation peer.
Surface:
* `TransportProvider`, `SafetyGate`, `Dispatcher` traits — async,
Send + Sync, so the Peer can run in any tokio executor.
* `Peer::run()` — inbound dispatch loop. `Pass` → dispatch;
`Block` → quarantine (never reaches dispatch); `Redact` →
dispatch the cleaned variant.
* `Peer::send()` — outbound through the gate first; Block error
bubbles back to the caller.
* `--features native` — pulls in midstreamer-quic@0.2.1 +
aimds-{core,detection,analysis,response}@0.1.1 from crates.io.
Without it, the binary builds and the trait surface compiles
so CI / `cargo check` work in any tree.
Verified:
* `cargo build` and `cargo test` — 3/3 unit tests pass
(dispatch loop with PassThroughGate, BlockEverythingGate, and
outbound-send-blocks-when-gate-blocks).
* `cargo check --features native` — resolves the upstream deps
cleanly.
## Step 2 update — `midstream-aware-loader.ts`
Probes `midstreamer/quic` (the new sub-path added in
midstreamer@0.3.1) first, falls back to the root `midstreamer`
import for older versions. Accepts both ESM and CommonJS shapes
(via `.default`) since the upstream sub-path is CJS.
## CI guards
* New workflow `.github/workflows/federation-peer-rust.yml`:
two jobs — `stable-noop` (cargo build + cargo test without
features) and `stable-native` (cargo check --features native).
Triggers on changes to the crate or this workflow.
* `scripts/audit-fix-invariants.mjs` gains 4 invariants pinning
the crate name + the midstreamer-quic version + the two
pluggable trait names. 31 invariants now present across 18
files (was 27/16).
## Verification matrix
* `node scripts/audit-fix-invariants.mjs` → 31/31 ✓
* `npx vitest run` in plugin-agent-federation → 22 files, 555/555 ✓
* `cargo test` in v3/crates/ruflo-federation-peer → 3/3 ✓
Co-authored-by: Reuven <cohen@ruv-mac-mini.local>
rUv