Prepare embedded-mcu-hal v0.3.0

[felipebalbi]

Bumps embedded-mcu-hal from 0.2.0 to 0.3.0 and refreshes Cargo.lock.

This is a minor release: all changes since v0.2.0 are additive. cargo semver-checks check-release confirms no breaking changes (196 checks pass).

What's new since v0.2.0

New traits

• SMBus HAL (Add SMBus HAL, dependent on embedded-hal-async::I2c #7) — adds src/smbus/ with blocking and async Bus traits built on top of embedded-hal-async::I2c, including PEC support via smbus-pec. Comes with an extensive async test suite.
• I2C target traits (Add I2c target traits #26) — adds src/i2c/target/ with blocking and async traits for I2C target-mode (slave) devices, including a 7-bit/10-bit address abstraction with full unit coverage.

Quality & infrastructure

• Improved test coverage (Improve test coverage #24) — new tests for nvram, time::datetime, time::datetime_clock, and watchdog; brings in embedded-hal-mock as a dev-dependency.
• docs.rs all-features build (ask docs.rs to build with all features #23) — [package.metadata.docs.rs] now builds with chrono and defmt enabled so the rendered docs include the feature-gated APIs.

Repo hygiene

• LICENSE copyright refresh and AI attribution guidance (Update LICENSE copyright and add AI attribution instructions #25).

New dependencies (embedded-mcu-hal)

• embedded-hal-async = "1.0.0" (runtime)
• smbus-pec = "1.0" (runtime, no_std)
• embedded-hal-mock (dev only)
• tokio with macros, rt, time (dev only, for async tests)

storage_bus

No changes since storage_bus_v0.1.0 — version stays at 0.1.0.

Verification

• cargo build -p embedded-mcu-hal — clean
• cargo semver-checks check-release -p embedded-mcu-hal — no semver update required (treated as minor, all additive)

Release checklist (post-merge)

• Tag embedded-mcu-hal-v0.3.0 on the merge commit
• cargo publish -p embedded-mcu-hal

[Copilot]

Pull request overview

Bumps the embedded-mcu-hal crate version from 0.2.0 to 0.3.0 in preparation for a minor release that bundles additive changes (SMBus HAL, I2C target traits, improved test coverage, docs.rs all-features build, and license/AI attribution updates) since v0.2.0.

Changes:

• Bump embedded-mcu-hal package version to 0.3.0 in its Cargo.toml.
• Refresh Cargo.lock to reflect the new version.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
embedded-mcu-hal/Cargo.toml	Version bump 0.2.0 → 0.3.0
Cargo.lock	Lockfile updated to match new crate version

[github-actions]

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[felipebalbi]

cargo vet appears to be drunk:

I'll merge it.