build: delete the offline backtest harness

.dockerignore

@@ -14,9 +14,6 @@ target/
 /data/
 data/
 
-# Backtest tooling output: large JSON fixtures + Python venv state.
-# Re-collected on demand via `tools/backtest-collect/backtest_collect.py`.
-tools/backtest-collect/fixtures-*.json
 tools/baseline-latency/data/
 tools/**/__pycache__/
 tools/**/*.pyc

Cargo.toml

@@ -12,7 +12,6 @@ members = [
     "crates/nexum-world",
     "crates/no-std-probe",
     "crates/shepherd",
-    "crates/shepherd-backtest",
     "crates/shepherd-cow-host",
     "crates/shepherd-sdk",
     "crates/shepherd-sdk-test",
@@ -105,7 +104,7 @@ auto_impl = "1"
 derive_more = { version = "2", default-features = false, features = ["full"] }
 
 # CLI parser. Used by every binary crate (engine, load-gen,
-# orderbook-mock, shepherd-backtest) via the derive macro.
+# orderbook-mock) via the derive macro.
 clap = { version = "4", features = ["derive"] }
 
 # alloy stack. Engine uses the full provider/transport surface;
@@ -196,7 +195,7 @@ axum = "0.8"
 # Randomness for tooling.
 rand = "0.10"
 
-# Hex codec for the backtest harness.
+# Hex codec for test fixtures and receipt rendering.
 hex = "0.4"
 
 # Dev/test helpers.

Dockerfile

@@ -74,7 +74,7 @@ RUN cargo chef cook --release -p shepherd --recipe-path recipe.json \
       -p cow-venue --features cow-venue/adapter --recipe-path recipe.json
 
 # Now the workspace sources. `.dockerignore` keeps the context lean
-# (no `target/`, no `data/`, no large baseline / backtest fixtures).
+# (no `target/`, no `data/`, no large baseline fixtures).
 # Only the workspace crates recompile here; deps come from the cooked layer.
 COPY . .
 

crates/nexum-sdk/Cargo.toml

@@ -68,7 +68,7 @@ proptest.workspace = true
 nexum-sdk-test = { path = "../nexum-sdk-test" }
 
 # The wasi:http client only links on the wasm guest target; host-side
-# consumers (tests, backtest tooling) compile the `http` module's types
+# consumers (tests, native tooling) compile the `http` module's types
 # without it.
 [target.'cfg(all(target_arch = "wasm32", target_os = "wasi"))'.dependencies]
 wstd.workspace = true

crates/nexum-sdk/src/address.rs

@@ -2,8 +2,8 @@
 //!
 //! Multiple Shepherd modules need to read a `[config]` value such as
 //! `addresses = "0xabc..., 0xdef..."` and surface a typed error when
-//! one of the entries is malformed; the offline backtest harness
-//! parses single `0x...` strings out of fixture JSON. Each module
+//! one of the entries is malformed, and native tooling parses single
+//! `0x...` strings out of JSON. Each module
 //! previously rolled its own `AddressListParseError` /
 //! `AddressParseError`. The shapes were near-identical; the audit
 //! pass consolidates them here so future modules pick up the same