Fixes welcome message and alias display

[zooba]

Also adds ruff.toml to exclude noisy rules.

[Copilot]

🟡 Changes recommended

Welcome messaging can use the host architecture instead of the configured default platform.

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Pull request overview

Updates welcome messaging and platform-aware alias display, with Ruff configuration cleanup.

Changes:

• Adds changelog and ARM64-specific welcome messages.
• Formats aliases relative to the configured default platform.
• Updates related tests and Ruff settings.

File summaries

File	Summary
tests/test_list.py	Updates alias display expectations.
tests/test_installs.py	Tests default-platform alias formatting.
tests/test_install_command.py	Updates command test platform setup.
src/manage/scriptutils.py	Removes an unused exception binding.
src/manage/installs.py	Implements platform-aware alias formatting.
src/manage/install_command.py	Passes the configured platform to alias formatting.
src/manage/commands.py	Adds changelog and platform-specific welcome messages.
ruff.toml	Configures ignored Ruff rules.

Review details

Suppressed comments (1)

src/manage/commands.py:548

• The new architecture-specific branch is not covered by the test suite: tests/conftest.py sets commands.WELCOME = "", so show_welcome() returns before this line in every test, and no test exercises either architecture-specific message. Please add focused coverage that mocks the architecture and verifies both the ARM64 and non-ARM64 messages.

        if get_processor_architecture() == "-arm64":

• Files reviewed: 8/8 changed files
• Comments generated: 1
• Review effort level: Lite

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