E8: add code coverage to CI

CI had no coverage measurement, and although .gitignore listed coverage
artefacts nothing produced them.

Add a `coverage` job that runs cargo-llvm-cov over the three pure-Rust
crates (with wickra-data's live-binance feature so the Binance parser
tests count), emits lcov, and uploads to Codecov. The Codecov upload
uses fail_ci_if_error: false so a Codecov outage cannot break CI. Both
new actions (taiki-e/install-action, codecov/codecov-action) are
SHA-pinned. Add a coverage badge to the README.
This commit is contained in:
kingchenc
2026-05-22 16:38:01 +02:00
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# Wickra
[![CI](https://github.com/kingchenc/wickra/actions/workflows/ci.yml/badge.svg)](https://github.com/kingchenc/wickra/actions/workflows/ci.yml)
[![codecov](https://codecov.io/gh/kingchenc/wickra/branch/main/graph/badge.svg)](https://codecov.io/gh/kingchenc/wickra)
[![crates.io](https://img.shields.io/crates/v/wickra.svg?logo=rust&color=orange)](https://crates.io/crates/wickra)
[![PyPI](https://img.shields.io/pypi/v/wickra.svg?logo=pypi&color=blue)](https://pypi.org/project/wickra/)
[![npm](https://img.shields.io/npm/v/wickra.svg?logo=npm&color=red)](https://www.npmjs.com/package/wickra)