Polish dialogs and the command palette, refresh the README screenshot

[Commanderx-code]

📝 Change

Final follow-up to the UI refresh (#22–#26): the dialogs, the command palette, and the README screenshot.

All dialogs: setup wizard, action review, repository details, setup bundle import, settings import, personal tool, workflow recipe, and tool inputs.

• Consistent 13px text (15px with Larger text). Unstyled paragraphs, labels, and summaries were using the browser's 16px default.
• A thin accent edge along the top, a soft accent corner glow, and a short entrance animation (disabled under prefers-reduced-motion).
• Accent focus rings on inputs, selects, and textareas; accent checkboxes and radios.
• Dashed placeholders for empty output boxes.

Bug fix, light theme: --panel-strong had no light-theme value.

• Every .wide-dialog (setup wizard, action review, repository details, setup bundle import) stayed dark in light mode while its text switched to dark, so titles and labels were close to unreadable. This happens on main today.
• The fix defines --panel-strong: #fff for [data-theme="light"]. The only other users of that variable are the command palette's selected row and a unit row's hover state, which now also get the correct light background.

Command palette:

• A single clean focus ring on the search box, replacing a clipped double outline.
• Results are compact one-line rows with a small type pill on the right (Page, Repository, Action).
• Hover highlight, and the selected row gets an inset accent bar.

README screenshot: docs/images/dashboard.jpg is replaced with a current capture.

• It's the browser preview with sample data, with the preview notice visible, as docs/development.md asks. The old image predated several pages and the new dashboard styling.
• 1440×900 so the whole sidebar is visible, rendered with the app's Inter font.
• The wiki Home page uses the same image from main, so it updates after merge.

The CSS is one block appended to src/styles.css. There are no markup or behavior changes.

✅ Validation

• npm run check
• npm test: 78/78 pass.
• npm run test:rust: not run; there are no Rust changes.
• Checked in the browser preview, dark and light: command palette, action review, setup wizard, repository details, and settings import, before and after. The review and setup dialogs were opened directly because their buttons are disabled in the preview.

🔎 Review notes

No new dependencies. Inter was loaded only into the screenshot browser and not added to the project.

🤖 Generated with Claude Code

https://claude.ai/code/session_01BUhabxL4SPejg19jgbSyYN

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Generated by Claude Code