Description

Correct the lean-ctx row in the README comparison table.

The upstream project documents reversible recovery paths and broader deployment surfaces than the table previously reflected.

Closes #1754

Type of Change

• Documentation update

Changes Made

• README.md: updated lean-ctx comparison row to match current documented capabilities and reversible behavior.

Testing

• Unit tests pass (pytest)
• Linting passes (ruff check .)
• Type checking passes (mypy headroom)
• New tests added for new functionality
• Manual testing performed

Test Output

Docs-only verification:
- Reviewed rendered README diff for the comparison row.
- Cross-checked updated row against current public lean-ctx docs covering deployment surfaces and reversible behavior.

Real Behavior Proof

• Environment: GitHub PR diff review for docs-only comparison-table update.
• Exact command / steps: Compared new README row wording against current public lean-ctx documentation.
• Observed result: Comparison row now matches documented capabilities instead of understating recovery and deployment support.
• Not tested: Runtime commands; docs-only change.

Review Readiness

• I have performed a self-review
• This PR is ready for human review

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have updated the CHANGELOG.md if applicable