Release v0.1.0-alpha.2 (#603)

We're finally here! It's been 4 months since [the Bevy CLI's first alpha
release](https://github.com/TheBevyFlock/bevy_cli/releases/tag/cli-v0.1.0-alpha.1),
and we believe that we're ready for the second!

[As per the release
process](https://thebevyflock.github.io/bevy_cli/contribute/cli/release.html),
this pull request will kick of the release of Bevy CLI v0.1.0-alpha.2.
This PR must be approved by at least one core Bevy maintainer, and there
must be no outstanding changes requested, before it can be merged[^1].

## Important Links

- [CLI Docs](https://thebevyflock.github.io/bevy_cli/cli/index.html)
-
[Changelog](https://thebevyflock.github.io/bevy_cli/cli/changelog.html#unreleased)
- [Migration
Guide](https://thebevyflock.github.io/bevy_cli/cli/migration.html#v010-alpha1-to-v010-alpha2-unreleased)

## For Reviewers / Maintainers

Please take the time to install the CLI and play around with the new
changes. Try it on a new project (such as
[`bevy_new_2d`](https://github.com/TheBevyFlock/bevy_new_2d)) or test it
on your existing code. If you used v0.1.0-alpha.1, see how difficult it
is to migrate to the new version. If you hit any bugs or papercuts, let
us know in your review! (Then we can decide whether it is blocking or
not.)

Additionally, please give a good read through of [the
docs](https://thebevyflock.github.io/bevy_cli/cli/index.html). Check for
outdated information or examples that no longer work, or even just areas
of the docs that are confusing!

Once you are happy with the state of the CLI, please leave an approving
review on this PR. Thank you for your time!

## Future Work

Once this is released, my personal goals are:

1. Prepare a design document for upstreaming the CLI and linter into
official products
2. Introduce the Bevy Linter into the Bevy engine's CI
3. Improve our testing infrastructure, taking inspiration [from Cargo's
test
suite](https://docs.rs/cargo-test-support/latest/cargo_test_support/)

@DaAlbrecht also [has plans for future work as
well](https://discord.com/channels/691052431525675048/1278871953721262090/1417907587877310475).

[^1]: I'll hit the merge button once this happens, because I need to
update the date in the changelog first before we can release.

---------

Co-authored-by: Alice Cecile <[email protected]>

Author: BD103

CHANGELOG.md

@@ -7,9 +7,9 @@ The format is based on [Keep a Changelog], and this project adheres to [Semantic
 [Keep a Changelog]: https://keepachangelog.com/en/1.1.0/
 [Semantic Versioning]: https://semver.org/spec/v2.0.0.html
 
-## Unreleased
+## v0.1.0-alpha.2 - 2025-09-22
 
-**All Changes**: [`cli-v0.1.0-alpha.1...main`](https://github.com/TheBevyFlock/bevy_cli/compare/cli-v0.1.0-alpha.1...main)
+**All Changes**: [`cli-v0.1.0-alpha.1...cli-v0.1.0-alpha.2`](https://github.com/TheBevyFlock/bevy_cli/compare/cli-v0.1.0-alpha.1...cli-v0.1.0-alpha.2)
 
 ### Added