chore(release): prepare 0.56.0

[elkaix]

Summary

• Bump version 0.55.0 → 0.56.0 across pyproject.toml, uv.lock, README, docs, and installer references
• Consume ## Unreleased into a new ## 0.56.0 (2026-07-02) CHANGELOG section (Windows shell UI blanking recovery, Workflow progress/lifecycle fixes, stale update-success notice fix) and sync into docs/en/release-notes/changelog.md
• Add 0.56.0 entry to docs/en/release-notes/breaking-changes.md (no breaking changes)

Test plan

• scripts/check_version_tag.py — pyproject matches 0.56.0
• README contains "What's New in 0.56.0" and pythinker-code==0.56.0 upgrade snippet
• CHANGELOG.md has ## 0.56.0 ( heading
• scripts/check_pythinker_dependency_versions.py — workspace package versions match
• pytest tests/test_installation_docs.py tests/test_homebrew_formula.py — 17 passed
• make build-web build-dashboard run locally to refresh bundled UI version fallback
• git grep -F "0.55.0" outside CHANGELOG/history — no stray references

Summary by CodeRabbit

• New Features
  • Released version 0.56.0 with updated notes covering improved Windows shell UI recovery, smoother workflow rendering/lifecycle behavior, and removal of stale update-success notices after downgrades.
• Documentation
  • Updated installation and upgrade instructions to match 0.56.0 across Windows, Linux, and package download guidance.
  • Refreshed release references and checksum links for the latest installers.
• Chores
  • Bumped the published package version to 0.56.0.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 38888730-ddcf-4863-97be-f21ab5836f23

📥 Commits

Reviewing files that changed from the base of the PR and between 5665370 and 012ae64.

⛔ Files ignored due to path filters (4)

• docs/en/guides/getting-started.md is excluded by !docs/**
• docs/en/release-notes/breaking-changes.md is excluded by !docs/**
• docs/en/release-notes/changelog.md is excluded by !docs/**
• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (4)

• CHANGELOG.md
• README.md
• packages/linux-installer/README.md
• pyproject.toml

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📝 Walkthrough

Walkthrough

This PR bumps the project version from 0.55.0 to 0.56.0 in pyproject.toml, and updates CHANGELOG.md, README.md, and packages/linux-installer/README.md to reflect new release notes, upgrade commands, installer filenames, download URLs, and checksum references.

Changes

Release 0.56.0 version bump

Layer / File(s)	Summary
Package version bump pyproject.toml	Version field bumped from 0.55.0 to 0.56.0.
Changelog entry for 0.56.0 CHANGELOG.md, README.md	Changelog and README "What's New" sections rewritten with expanded 0.56.0 release bullets and updated upgrade instructions.
Installer artifact references updated README.md, packages/linux-installer/README.md	Windows installer filename, Linux .deb/.rpm URLs, checksum files, and local build script invocation updated from 0.55.0 to 0.56.0.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• Pythoughts-labs/pythinker-code#180: Same release version bump pattern across CHANGELOG.md, README.md, packages/linux-installer/README.md, and pyproject.toml.
• Pythoughts-labs/pythinker-code#176: Identical version-bump workflow updating the same set of release-facing files.
• Pythoughts-labs/pythinker-code#189: Directly precedes this PR's version-pinned install artifact updates, advancing from 0.55.0 to 0.56.0.

Suggested labels: dependencies

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description uses a custom summary/test plan format and omits the required Related Issue and Checklist sections.	Add the template sections, especially Resolve #(issue_number), the Description block, and the full checklist items.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title follows conventional commits and accurately describes the release preparation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release/0.56.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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