Add PyPI metadata + bump to miles-rl 0.0.2

[Shi-Dong]

ci-image-tag: dev-phase2-test-v2

Summary

• Bump setup.py version to 0.0.2.
• Fill in the previously-empty PyPI metadata fields: description, long_description (from README.md), long_description_content_type, url, project_urls (Source / Documentation / Issues), license="Apache-2.0" (with license_files=("LICENSE",)), author, author_email, keywords.
• Defensively include README.md LICENSE in MANIFEST.in so they ship in both sdist and wheel.

Why

PyPI metadata is locked per uploaded version — it can't be edited after upload. miles-rl 0.0.1 went up with empty summary / description / home_page / license / etc., so https://pypi.org/project/miles-rl/ shows a near-empty project page. PyPI displays the latest release's metadata on the project page, so cutting 0.0.2 with full metadata fixes it going forward.

Test plan

• python3 -m ast parses setup.py cleanly.
• Trigger publish-pypi.yml workflow_dispatch with dry_run=false on this branch → uploads miles-rl==0.0.2 via OIDC, polls PyPI index, smoke-installs in a fresh venv.
• After upload, https://pypi.org/project/miles-rl/ renders the README and shows all the metadata.

Stacked on

radixark/miles PR #1231 (Phase 7 publish workflow).

What this PR explicitly does NOT do

• Doesn't change any code outside setup.py and MANIFEST.in.
• Doesn't populate extras_require["gpu"] — that's separate work.
• Doesn't modify the publish-pypi.yml workflow (only triggers it).

[gemini-code-assist]

Code Review

This pull request updates the package configuration by defensively including README.md and LICENSE in MANIFEST.in, and enriching the metadata in setup.py (including adding a long description read from README.md). A review comment suggests adding a fallback check for the existence of README.md in setup.py to prevent a FileNotFoundError during packaging in environments where the file might be missing.

[gemini-code-assist]

If setup.py is executed in an environment where README.md is missing (for example, in some automated build/packaging pipelines or environments where only setup.py is parsed), Path.read_text() will raise a FileNotFoundError and crash the setup process. It is safer to check if the file exists and fallback to an empty string.

Suggested change

	def _read_long_description():
	"""Return the README contents so PyPI renders the project page."""
	from pathlib import Path
	return Path(__file__).parent.joinpath("README.md").read_text(encoding="utf-8")
	def _read_long_description():
	"""Return the README contents so PyPI renders the project page."""
	from pathlib import Path
	readme_path = Path(__file__).parent.joinpath("README.md")
	return readme_path.read_text(encoding="utf-8") if readme_path.exists() else ""

[Shi-Dong]

Superseded. Replaced by a thin packaging slice cut fresh off current `main`:

• Add sglang and Megatron-LM as git submodules under third_party/ #2493 — add `third_party/sglang` + `third_party/Megatron-LM` submodules (pinned at today's `sglang-miles` / `miles-main` tips)
• Publish miles as the miles-rl wheel on PyPI #2495 — `setup.py` bundling, `MANIFEST.in`, `publish-pypi.yml`, `miles-rl` 0.2.2

This branch was 457 commits behind `main` and its submodule pin for sglang was 2831 commits stale and no longer an ancestor of `sglang-miles`. Rebasing it would also have resurrected the `examples/experimental/swe-agent` submodules that #1918 deliberately deleted. The branch is left in place; nothing is lost.