style(tui): grey out dark-theme borders and input rules

[elkaix]

Summary

Darkens the dark-theme chrome so panel borders and input-area rules no longer glare near-white.

• border token (and compact-input.frame) move from #e8ebed (near-white) to #8a8d91 (mid grey) in the dark theme — affects the welcome banner, menus, and the compact input rules.
• Tests updated to assert the new token value.

Verification

uv run pytest tests/ui_and_conv/test_shell_panel.py tests/ui_and_conv/test_tui_theme_tokens.py -q
# 25 passed

Changelog entry added under ## Unreleased.

Summary by CodeRabbit

• Style
  • Dark theme: Panel borders (welcome banner, menus) and input area styling now use a softer mid-grey color for improved visual comfort.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Run ID: c1f46b3c-e6bb-4cae-b3c5-6c4eb4865865

📥 Commits

Reviewing files that changed from the base of the PR and between 8c3f521 and fcbfccb.

📒 Files selected for processing (4)

• CHANGELOG.md
• src/pythinker_code/ui/theme.py
• tests/ui_and_conv/test_shell_panel.py
• tests/ui_and_conv/test_tui_theme_tokens.py

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📝 Walkthrough

Walkthrough

Two hex color values in the dark TUI theme are changed from #e8ebed to #8a8d91: the compact-input.frame foreground in _PROMPT_STYLE_DARK and the border semantic token in _TUI_TOKENS_DARK. Two test assertions and a changelog entry are updated to match.

Changes

Dark theme border color update

Layer / File(s)	Summary
Dark theme color values and test assertions src/pythinker_code/ui/theme.py, tests/ui_and_conv/test_shell_panel.py, tests/ui_and_conv/test_tui_theme_tokens.py, CHANGELOG.md	compact-input.frame and border token changed from #e8ebed to #8a8d91; both border-color test assertions updated to the new value; changelog entry added under Unreleased.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• Pythoughts-labs/pythinker-code#88: Modifies the same dark-theme border token area in src/pythinker_code/ui/theme.py with corresponding test changes.

Suggested labels

enhancement

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 70.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	Title follows conventional commits format with valid type 'style' and scope 'tui', clearly describing the change to dark-theme borders and input rules.
Description check	✅ Passed	Description includes summary, specific changes, verification with test results, and changelog confirmation. Related issue section is not filled, but overall structure is complete.
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.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch style/tui-grey-borders

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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