feat(web): copy branch name via right-click in the branch selector

[t3dotgg]

Problem

Right-clicking the branch name below the composer (or any ref in the branch picker) showed the browser's default Cut/Copy/Paste menu with everything disabled, so there was no way to copy a branch name for cloning or checking out elsewhere.

Fix

Right-clicking the branch selector trigger or any branch row in the ref picker now opens a Copy branch name context menu, using the existing localApi.contextMenu.show plumbing (native menu on desktop, DOM fallback on web — same as tab and sidebar context menus). Copying uses the shared writeTextToClipboard helper and reports success/failure via toast, matching the "Copy path" behavior on right-panel tabs.

• Trigger button: copies the currently resolved active branch.
• Picker rows: copies that row's ref name (works for local, remote, worktree, and default refs). The "create new ref" and "checkout PR" rows are unaffected.

Verification

• pnpm typecheck (apps/web) passes.
• pnpm lint clean for the touched file (remaining warnings are pre-existing elsewhere).

🤖 Generated with Claude Code

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Note

Low Risk
Isolated UI in the branch selector; reuses established context-menu and clipboard patterns with no auth, data, or VCS checkout logic changes.

Overview
Right-click on the active branch trigger or any ref row in the branch picker now opens a Copy branch name context menu (via localApi.contextMenu.show, same as sidebar and right-panel tabs). The chosen ref is copied with writeTextToClipboard, with success and error toasts aligned with existing copy-path behavior.

The combobox trigger is wrapped in a span that owns onContextMenu so copy still works while the trigger button is disabled during ref load or pending branch actions (pointer-events-none on the button would otherwise block right-clicks). Create-ref and checkout-PR rows are unchanged.

^{Reviewed by Cursor Bugbot for commit f9749bf. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Add right-click context menu to copy branch name in the branch selector

• Adds onContextMenu handlers to each branch ComboboxItem and to a wrapper around the ComboboxTrigger in BranchToolbarBranchSelector.tsx.
• Right-clicking opens a native context menu with a 'Copy branch name' option; selecting it writes the branch name to the clipboard via writeTextToClipboard and shows a success or error toast.
• The wrapper around the trigger captures right-clicks even when the button is disabled (which sets pointer-events-none).
• Requires a local API to be available; the context menu is skipped otherwise.

^{Macroscope summarized f9749bf.}

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/copy-branch-name-context-menu

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[macroscopeapp]

Approvability

Verdict: Approved

Simple UI feature adding right-click copy functionality to the branch selector. Uses existing clipboard and context menu utilities with no complex logic or side effects beyond the intended behavior.

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Dismissing prior approval to re-evaluate f9749bf