release: 0.4.1

[abhiksark]

Patch release bundling the TUI features merged since v0.4.0.

Versioned 0.4.1 (patch) rather than 0.5.0 deliberately: these are additive UI polish (welcome modal, an extra progress line, a celebration screen), not a milestone on the scale of the rename (0.3.0) or zero-config first-run (0.4.0) that earned those minors.

Included

Added (from #31)

• First-launch welcome screen explaining the loop.
• Overall curriculum progress in the TUI alongside per-topic.
• Completion celebration at 100%.

Fixed (from #32)

• Topic completion no longer shows the whole-curriculum "All exercises complete" header.

Bumps pyproject.toml to 0.4.1 (the only version source — --version reads package metadata) and adds the CHANGELOG entry. Built wheel/sdist verified locally; pythonlings --version → 0.4.1. Suite: 147 passing on 3.9 + 3.13.

Merging this, then tagging v0.4.1 + creating the GitHub release triggers the trusted-publishing workflow to PyPI.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: ba1a5307-c941-48e2-92a4-87216e45ba3a

📥 Commits

Reviewing files that changed from the base of the PR and between 28aaf5b and 41c79e5.

📒 Files selected for processing (2)

• CHANGELOG.md
• pyproject.toml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release/0.4.1

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