feat(examples): stop-loss module + tutorial as guided tour (BLEU-852)#23
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brunota20 wants to merge 1 commit into
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feat(examples): stop-loss module + tutorial as guided tour (BLEU-852)#23brunota20 wants to merge 1 commit into
brunota20 wants to merge 1 commit into
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Closes the loop opened by BLEU-848 (tutorial). The tutorial used to walk through a stop-loss scenario but left `build_order_body` as a `todo!()` cross-referencing twap-monitor. Now: 1. `modules/examples/stop-loss/` ships as a real workspace member, shaped the same way as the price-alert refactor (BLEU-851 / PR #22): pure logic in `strategy.rs` against `&impl Host`, wit-bindgen adapter + Guest impl in `lib.rs`. 2. The strategy is complete - reads a Chainlink oracle, builds an `OrderCreation` with `Signature::PreSign` (owner pre-signs via setPreSignature on-chain ahead of the trigger; module ships zero ECDSA), dedups via `submitted:{uid}`, persists `dropped:{uid}` on permanent submit errors. 3. Tests (7 total) cover the dispatch matrix end-to-end against `shepherd_sdk_test::MockHost`: - idle_when_price_above_trigger - triggers_and_submits_once_then_dedups - permanent_submit_error_marks_dropped (+ dedup on the next block) - transient_submit_error_leaves_state_unchanged - oracle_rpc_error_is_warn_and_continue - parse_config_round_trips_settings - parse_config_rejects_missing_owner 4. `docs/tutorial-first-module.md` rewritten as a guided tour instead of inlined snippets. The tutorial now reads the real `modules/examples/stop-loss/` source top-to-bottom and explains *why* each piece is shaped the way it is - sections on the wit-bindgen adapter, the `OrderCreation` assembly with PreSign, the dedup matrix, and the test recipe against MockHost. No more `todo!()`. Numbers: - `.wasm` 304 KB optimised (release build). - 7 host tests passing; clippy clean on host + wasm32-wasip2. - Tutorial is 449 lines (was 580 with the duplicated inline code); shorter because it points at real files instead of transcribing. Stacks on PR #22 (price-alert host-trait refactor) so both modules land alongside the wit-bindgen adapter recipe the tutorial documents.
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Summary
Closes the open loop in the M3 tutorial. Was a stop-loss walkthrough with `build_order_body` as a `todo!()`. Now:
Numbers
.wasm(release)Stacks on #22 (BLEU-851 price-alert refactor) so both modules + the tutorial land alongside the wit-bindgen adapter recipe.
Linear: BLEU-852.
Test plan