[scosman]

Follow-up to #23, which was merged before these commits were ready.

Summary

Finish the 0.3.0 version bump (345fa0f):

• The v0.3.0 bump commit changed only pyproject.toml and uv.lock. src/seahaven_stripe_world/world.py and openenv.yaml now also say 0.3.0.
• The fixtures keep the world_version they were frozen at.
• New test test_the_version_agrees_in_all_four_places in tests/test_package.py. It fails unless all four places agree, so a bump that misses one fails CI. Against the old tree it fails and names world.py and openenv.yaml.

RELEASING.md follow-ups (7c0e58c):

• uv.lock is never edited by hand. The table in section 1 has a new "Written by" column. The text says uv writes the lock: uv version during a bump, and uv lock or uv sync after any other pyproject.toml change.
• --extra serve on every command that needs it.
  • openenv, hf and huggingface_hub are installed only by the serve extra, and a plain uv sync removes that extra. Run without it, the Space-card command failed with ModuleNotFoundError: No module named 'huggingface_hub'.
  • Every such command now runs as uv run --extra serve …: openenv validate, hf auth login, openenv push, the Space-card python -c and the Space test snippet.
  • Section 3 explains why. The separate uv sync --extra serve step is gone, and the doc still says the extra needs Python 3.14 final.

Note: PyPI's seahaven-stripe-world==0.3.0 was built before this fix and still reports world.version == "0.2.0". The next release (0.3.1 or later) fixes that.

Test plan

• uv run ruff format --check && uv run ruff check, uv run ty check, uv run seahaven check: clean
• uv run pytest: 1300 passed, 2 skipped
• small_co loads under world version 0.3.0 with its fixture still at world_version: 0.2.0
• In a fresh clone after a plain uv sync, the ModuleNotFoundError and Failed to spawn: openenv errors reproduce. With --extra serve, all of these work:
  • openenv validate . (only the expected missing-validation: failure)
  • hf auth login --help
  • openenv push --help
  • from huggingface_hub import metadata_update
  • from openenv import AutoEnv
• uv publish and openenv push were not run, since they publish

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