Refactor and cleanup code

[zweckj]

No description provided.

[Copilot]

Pull request overview

This PR modernizes the aioacaia library by splitting previously monolithic helper/decoder logic into focused modules (discovery/encoder/parser/messages), updating AcaiaScale to use typed messages, and adding a new test suite to cover the message framing/parsing behavior.

Changes:

• Refactors BLE discovery, encoding, and notification parsing into new modules (discovery.py, encoder.py, parser.py, messages.py) and updates AcaiaScale accordingly.
• Adds comprehensive tests and fixtures for encoder/parser/scale behaviors.
• Bumps project version to 0.2.0 and updates project metadata (including license switch to MIT).

Reviewed changes

Copilot reviewed 16 out of 19 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
uv.lock	Lockfile revision/version update plus extra metadata fields.
aioacaia/scale.py	Switches to typed parsed messages; refactors weight/button handling into helpers.
aioacaia/parser.py	New notification decoder/parser implementation and sample handler.
aioacaia/messages.py	Introduces typed message dataclasses and button enum.
aioacaia/encoder.py	New encoder implementation with checksum handling.
aioacaia/discovery.py	Extracted BLE discovery + model-name derivation from removed helpers.
aioacaia/init.py	Updates package exports to AcaiaScale from scale.py.
aioacaia/helpers.py	Removed legacy mixed helper/encoding/discovery implementation.
aioacaia/decode.py	Removed legacy decoder implementation in favor of parser.py.
tests/test_scale.py	New tests for scale state updates, timer behavior, and queueing commands.
tests/test_parser.py	New parser coverage for all decode branches and edge cases.
tests/test_encoder.py	New tests for command framing and checksums.
tests/fixtures/messages.py	Adds real/crafted frames for parser tests.
tests/init.py / tests/fixtures/init.py	Establishes test package structure.
pyproject.toml	Version/license/description update; adds pytest/pytest-asyncio config.
README.md	Updates headline but leaves usage/docs inconsistent with refactor.
run.py	Updates imports to new modules but leaves a now-broken debug call.
LICENSE	Replaces AGPLv3 text with MIT license text.

Comments suppressed due to low confidence (1)

README.md:7

• The README usage snippet is currently not valid Python (missing : and indentation) and references removed/renamed APIs (aioacaia.helpers.find_acaia_devices, AcaiaScale.create, startStopTimer, resetTimer). Since this PR refactors these modules, the README should be updated to match the new public entrypoints and method names.

Python library to interact with your acaia scales.

# Usage

```python

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Pull request overview

Copilot reviewed 20 out of 23 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

aioacaia/scale.py:536

• In the AcaiaMessageTooLong recovery path, the inner probe decode(pending[next_start:]) only catches AcaiaMessageError. If that candidate header produces AcaiaMessageTooShort or AcaiaMessageTooLong, the exception will escape on_bluetooth_data_received, potentially crashing the Bleak notification callback and breaking further state updates. Treat these framing exceptions as "not a valid resync point" and continue scanning for the next header instead.