## Two CI failures on PR #778 fixed
### 1. Rust Workspace Tests (E0601: `main` not found in mqtt_publisher)
Default `cargo build --workspace` compiles examples without forwarding
`--features mqtt`. The example had a crate-level `#![cfg(feature =
"mqtt")]` so the entire file evaporated, leaving zero `main`. Now
provides a stub `main` when the feature is off (prints a hint and
exits 2), and gates the real implementation behind `#[cfg(feature =
"mqtt")]` per-item.
Local verification:
cargo check --no-default-features --examples → clean
### 2. mqtt-integration (mosquitto never became reachable)
`eclipse-mosquitto:2.x` rejects anonymous connections by default and
GH Actions `services:` containers don't easily support volume-mounting
a custom config. Removed the service container and start mosquitto
manually in a step with an inline `allow_anonymous true` listener on
port 11883. Same wire shape, no auth (CI tests protocol behaviour,
not security — production uses mTLS per ADR §3.9).
## Benchmark numbers captured (`docs/integrations/benchmarks.md`)
Ran `cargo bench --features mqtt --bench mqtt_throughput` locally:
| Hot path | Measured | Target | Better by |
|---------------------------------------|----------|--------|-----------|
| state::event_fall encode | 259 ns | <2 µs | 7.7× |
| rate_limiter::allow_first | 49.7 ns | <100 ns| 2× |
| rate_limiter::allow_within_gap | 62.1 ns | <100 ns| 1.6× |
| privacy::decide_hr_strip | 0.24 ns | <50 ns | 208× |
| privacy::decide_presence_keep | 0.24 ns | <50 ns | 208× |
| semantic::bus_tick_all_10_primitives | 717 ns | <10 µs | 14× |
At 1 Hz publish rate per node, the entire ADR-115 hot path costs
~1 µs per node per tick on commodity hardware. A Cognitum Seed
hosting 100 nodes would burn 100 µs/sec — 0.01% load floor. Memory:
~30 KB total FSM state for 10 primitives × 100 nodes.
The numbers exceed every target by ≥1.6×, several by 100×+. No need
to optimise further for v0.7.0.
Refs #776, PR #778.
Co-Authored-By: claude-flow <ruv@ruv.net>
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