feat(web): use a compact right-panel surface menu

[maria-rcks]

Replaces the empty right-panel card grid with a compact surface list. Unavailable options show dimmed shortcut keys, with explanations available in focusable tooltips. Preserves existing actions, keyboard handling, and browser profile selection. Disables glass blur at 100% opacity and uses the shared workspace toolbar height for the diff header and toast offset.

Verified in the real web client in light and dark themes at 1280×800 and the narrow sheet at 900×700: launcher and terminal open/close, keyboard activation, and focusable unavailable-option tooltips. All 49 focused panel, toast, and settings tests and web typecheck pass; targeted lint has only existing warnings. Verified the opacity setting at 100% disables blur and returning to 80% restores it in both themes. Desktop browser profile selection is unverified.

Built with GPT-6 in Codex through T3 Code.

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This PR changes the default right-panel surface launcher from cards to a compact menu, including its layout, disabled-option behavior, and keyboard interaction. It also adjusts shared titlebar/toast sizing and glass rendering, so the product-default change warrants human review.

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[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Advanced

Run ID: 595b2f1f-d028-45ed-8bbd-c2e71454e373

📥 Commits

Reviewing files that changed from the base of the PR and between 1fb78dd and f48b40a.

📒 Files selected for processing (4)

• apps/web/src/components/DiffPanelShell.tsx
• apps/web/src/components/RightPanelTabs.tsx
• apps/web/src/components/ui/toast.tsx
• apps/web/src/routes/__root.tsx

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📝 Walkthrough

Walkthrough

The right-panel empty state changes to a compact single-column list. Workspace offsets now use the topbar height variable. Glass appearance synchronization updates the blur property with opacity changes.

Changes

Workspace UI

Layer / File(s)	Summary
Launcher layout and action definitions apps/web/src/components/RightPanelTabs.tsx	The launcher removes action descriptions and card-specific styles. The empty state uses a single-column list with updated comments and heading text.
Surface rows and keyboard behavior apps/web/src/components/RightPanelTabs.tsx	Available surfaces render as compact rows with inline shortcuts. The browser profile chooser is centered at the row edge. Unavailable surfaces render as focusable muted rows with DisabledReasonTooltip. Enter-key activation now requires launcher-container focus.
Workspace-aligned offsets apps/web/src/components/DiffPanelShell.tsx, apps/web/src/components/ui/toast.tsx	The Electron diff header and toast viewport use --workspace-topbar-height instead of a fixed 52px offset.
Glass appearance synchronization apps/web/src/routes/__root.tsx	GlassAppearanceSync sets --glass-blur to 0px at full opacity and removes the property otherwise.

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested reviewers: juliusmarminge, stienswout, t3dotgg

Merge Risk: ⚪ Minimal · up to f48b4

The PR replaces the right-panel card grid with a compact surface list and aligns workspace offsets and glass rendering with shared settings. The supplied checks show the primary web flows and tests passing, with no actionable merge-blocking risk identified.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 4 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
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.
Title check	✅ Passed	The title clearly and concisely describes the primary change: replacing the right-panel surface cards with a compact menu.
Description check	✅ Passed	The description explains the main changes, verification results, UI behavior, screenshots, and video. It is mostly complete, although it does not use explicit "Why" or "Checklist" headings.

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Dismissing prior approval to re-evaluate f48b40a