Add 'Flash Focused Panel' to command palette

[lawrencecchen]

Summary

• Adds "Flash Focused Panel" as a command palette entry (Cmd+Shift+P → type "flash")
• Wired to the same triggerFocusFlash() that Cmd+Shift+H uses
• Shortcut hint reads from KeyboardShortcutSettings (stays in sync with custom bindings)

Closes #633

Test plan

• Cmd+Shift+P → type "flash" → "Flash Focused Panel" appears with ⌘⇧H hint
• Selecting it flashes the accent-color border on the focused panel
• Remapping Cmd+Shift+H in Settings updates the palette hint

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Project	Deployment	Actions	Updated (UTC)
cmux	Building	Preview, Comment	Feb 27, 2026 10:43am

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📥 Commits

Reviewing files that changed from the base of the PR and between 5a763a8 and 346a442.

📒 Files selected for processing (1)

• Sources/ContentView.swift

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch issue-633-trigger-flash-v2

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[greptile-apps]

Greptile Summary

Added "Flash Focused Panel" to the command palette (Cmd+Shift+P), making the existing focus flash feature discoverable. The implementation correctly wires the command to tabManager.triggerFocusFlash() (the same function triggered by Cmd+Shift+H) and dynamically displays the keyboard shortcut hint by reading from KeyboardShortcutSettings, ensuring the hint stays synchronized with custom key bindings.

• Added command palette entry with keywords: "flash", "highlight", "focus", "panel"
• Mapped palette.triggerFlash to KeyboardShortcutSettings.Action.triggerFlash for dynamic shortcut hint
• Registered command handler to call tabManager.triggerFocusFlash()
• Implementation follows existing patterns for other commands with dynamic shortcuts

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• Simple feature addition that follows established patterns, no breaking changes or edge cases. The implementation correctly integrates with existing systems (TabManager, KeyboardShortcutSettings, command palette) and requires only three small, consistent additions to ContentView.swift
• No files require special attention

Important Files Changed

Filename	Overview
Sources/ContentView.swift	Added "Flash Focused Panel" command to command palette with dynamic keyboard shortcut hint, following existing patterns

_{Last reviewed commit: 346a442}